Main image, by Eoperipatus sumatranus, Mok Youn Fai

Above, Peripatus sp, by Susan Myers

There are around 180 species of Velvet Worm

Above, A selection of velvet worm species from Australia. Original photographs by Jenny Norman, Noel Tait and Paul Sunnucks, from here

They live in moist, dark places in the tropics, as well as Australia and New Zealand

Above, Velvet worm (Peripatoides novaezealandiae), by Frupus

Velvet Worms have changed little in the last 500 million years with fossils of marine versions being found from Cambrian Era rocks (Burgess Shale, Canada 505 years ago, and the Chengjiang formation, China (520 million years ago))

Above, Euperipatoides sp, by Edward Evans

They have hydrostatic skeletons, comprised of muscle layers and the body wall. It's body cavity is filled with fluid, which is pressurised and keeps the body rigid!

Above, Peripatus sp, by Paul

They move by alternating the internal fluid pressure in its limbs as they extend and contract along its body!

Their skin is waterproof and is covered with papillae- tiny protrusions with bristles which are sensitive to touch and smell!

Above, Velvet worm (Eoperipatus sp.) by Nicky Bay

The papillae are composed of overlapping scales, which gives the Velvet Worm its velvety appearance!

Above, Skin of Euperipatoides rowelli, by Andras Keszei

Their feet are described as conical, baggy appendages. At the end of each foot is a hooked claw made of chitin, the Velvet Worms scientific name is Onychophora, meaning 'claw bearers'

Above, Onychophoran legs and claws, by alexselemba

Above, Onychophora, by Nicky Bay

They only use the claws on their feet when walking on uneven surfaces, they can retract these claws and use its foot cushion at the base of the claw

Depending on the species, a velvet worm can have between 13 and 43 pairs of feet. The feet are hollow, fluid-filled, and have no joints.

Above, Peripatoides novaezealandiae, by Frupus

Velvet Worm species can vary in length from 10mm long to ones in excess of 20cm

Above, velvet worm to scale, by Andras Keszei

They have a pair of sensory antennae on their heads, and small eyes. The mouth has a set of jaws, and is flanked by two papillae

Above, photo by melvyn yeo

They prefer to live in moist areas, hiding in the soil, or under rocks and rotting wood... and they like to come out at night and during wet weather

Above, Ooperipatellus species, by Simon Grove

They hunt at night for small invertebrates, and are ambush predators. They have a pair of glands on their heads near to the antennae which squirts out a sticky, quick hardening slime!

Above, Eoperipatus sumatranus? by Nicky Bay

Above, via Daily Dot

The slime ensnares their prey, allowing the Velvet Worm to inject a digestive saliva through its bite... this liquefies insides of its prey making it easier to eat! It will also eat any left over slime as it is energetically costly for it to produce

Above, by Miguel "Siu"

One species (Euperipatoides rowelli) is social! It lives in groups of up to 15 individuals, and has a strict social hierarchy with a dominant female!

Above, Velvet worms (Euperipatoides rowelli)- Captive individuals. A couple babies can be seen in this image, by Jackson Nugent

After a kill the dominant female feeds first, then the other females, the males, and finally the young... the hierarchy is strictly enforced and maintained via aggression (biting, chasing, kicking and crawling over subordinates!)

All Velvet Worms reproduce sexually except Epiperipatus imthurni which reproduces via parthenogenesis! No males have ever been found... only females!

Above photo (Epiperipatus imthurni), by Geoff Gallice

Sexual reproduction can be quite varied amongst the species of Velvet Worms.... some males will deposit their spermatophores directly into the female's genital opening. Other use a special structures on the head, whilst some use spikes, spines, or pits to either hold their sperm or transfer it to the female!

Above, Metaperipatus inae, by Art

Male Peripatopsis Velvet Worms will deposit their spermatophore on random areas of the females body. The sperm causes a small, localised breakdown of her skin, allowing the sperm to enter her body. It then migrates to her ovaries, and fertilisation takes place!

Birth can be as varied as reproduction. Some species lay eggs. Peripatopsis mothers retain eggs in their uteri and supply nourishment to their embryos, but without any placenta....Most velvet worms however, give birth to live young after a period of gestation their via a placenta. All young are born/hatch fully developed, and look like mini adults!

Above, Peripatus-sp, by Pedro Bernardo (Peripatus mothers supply nourishment to their embryos through a placenta)

Euperipatoides rowelli just "born" (not sure what the term is for oviviparous animals), still in the egg membrane it developed in inside it's mother. The egg is approximately 2mm in diameter

Above, Euperipatoides rowelli, Andras Keszei

Goodbye, Velvet Worm!

Above, Eoperipatus sp, by Nicky Bay

Info via wired and wikipedia here and here

As always my usual disclaimer.... I'm no expert, I just like learning and sharing information, any mistakes will be mine and I'll correct them if you leave a comment 👍

Main image, While Gotham sleeps........ by Michael Gerber

RED...

Above, Pseudoceros ferrugineus, by Benjamin Naden

PINK...

Above, Protheceraeus roseus, by João Pedro Silva

YELLOW...

Above, Eurylepta sp. by Karen Honeycutt

ORANGE...

Above, Pseudoceros sp. by Rafi Amar

BLUE...

Above, Racing Stripe Flatworm - Pseudoceros liparus, by Rafi Amar

PURPLE...

Above, Linda's Flatworm - Pseudoceros lindae, by Rafi Amar

BROWN...

Above, Photo by Nick Hobgood

TRANSPARENT...

Above, Paraplanocera sp. by Rafi Amar

SALAD...

Above, Cryptic Flatworm - Pseudobiceros kryptos, by Rafi Amar

GOTH...

Above, Photo by Bettydiver

NEON...

Above, Pseudoceros dimidiatus, by Richard Ling

STARRY...

Above, Thysanozoon nigropapillosum, by Patomarazul

TRIPPY...

Above, Persian Carpet Flatworm - Pseudobiceros bedfordi, by Rafi Amar

GLITTERY...

Above, Photo by eunice khoo

FRILLY...

Above, Glorious Flatworm - Pseudobiceros gloriosus, by Rafi Amar

STRIPEY...

Above, Pseudoceros zebra, by Marina Poddubetskaia

SPOTTY...

Above, Pseudoceros scintillatus, by ilan Lubitz

VEINY...

Above, Eurylepta californica, by Robin Gwen Agarwal

BRAINY...

Above, Maritigrella fuscopunctata, by Rafi Amar

SANDY...

Above, Pseudobiceros damawan, by Rafi Amar

CAKEY...

Above, Lizard Island Flatworm - Tytthosoceros lizardensis, by Rafi Amar

CAMOUFLAGEY...

Above, Flatworm - Paraplanocera sp. by Rafi Amar

HOLSTEIN-FRIESIANY...

Above, Eurylepta sp.1, by Rafi Amar

AMBUSH RUG...

Above, Photo by eunice khoo

GOODBYE, FLYING FLATWORM!

Above, Persian Carpet Flatworm - Pseudobiceros bedfordi, by Rafi Amar

edit- Forgot to do the thing that makes the image pop out when you click on it.....

Main image, Oleander Hawk Moth Caterpillar (Daphnis nerii, Sphingidae), by itchydogimages

Startled? Alarmed? Did I hear you mutter "WTF?" under your breath?

Then evolution wins again. Imagine if you were confronted by the same sight if you were a bird or a praying mantis or a snake for that matter. Eyespots (markings that resemble vertebrate eyes) have evolved many times in Lepidopterans (butterflies and moths). The fact that this adaptation has arisen independently so often in this group indicates the general effectiveness of this anti-predator defence. itchydogimages

Above, Walking forest, by Gabriela F. Ruellan

Above, Moth Caterpillar - Cerura vinula, by Lukas Jonaitis

I took this photo last summer. This caterpillar is one of the most beautifull caterpillars in Lithuania. I think it is very photogenic caterpillar because of its green colour and red tails which are visible only when caterpillar is scared. He has very nice face. :) Lukas Jonaitis

Above, Saturnia Pyri, by Jano De Cesare

This is a beautiful larva of a Saturnia Pyri, a butterfly which is around 16cm in maximum dimension at its mature state. Jano De Cesare

Above, Stinging Nettle Slug Caterpillar (Cup Moth, Setora baibarana, Limacodidae) "The Jester" by itchydogimages

First-in-line to the throne of the brilliant Yunnan lineage of Limacodid caterpillars, together with its alternate colour form, "The Clown", "The Jester's" livery is almost fluorescent. itchydogimages

Above, Stinging Nettle Slug Caterpillar, Limacodidae, by Andreas Kay

Above, 3rd Instar Cecropia, by Barb Sendelbach

Above, Big Foot (Cecropia), by MaggieDu

Above, Photo by Frank Starmer

Above, Dalceridae moth caterpillar, by Gerardo Aizpuru

Dubbed the 'jewel caterpillar', this lovely, translucent larva belongs to a family of moths known as Dalceridae. Although scientists are still unsure about the exact function of the caterpillar's translucent, gooey attributes, the leading theory is that the slimy stickiness helps to deter predators. According to Scientific American, the jelly-like 'cones' that cover the body break off easily (sort of like a lizard's tail), helping the caterpillar slip out of a predator's clutches. source

Above, Flannel moth caterpillar, by Drriss & Marrionn found here

It may look like Donald Trump's misplaced toupee (it's actually been dubbed the 'Donald Trump caterpillar'), but this flannel moth larva is actually not covered with hair at all. Those silky-looking threads are actually venomous spines that can cause intense, burning pain when touched, making the caterpillar one of the most venomous in the US. source

European Paper Wasp - Polistes dominula, by Heath McDonald

Whilst looking for the Bee Flies I came across a solitary male Paper Wasp on a dead leaf, it wasn’t the best angle, whilst moving the camera gear it started to be aware of me and moved to this position which looked even more awkward side one but from the front, gave a great position for a portrait, managed a few shots before it started moving again so left it alone at that point.

Best viewed very large

Main Image of....

....three species of tunicates ("sea squirts") - Polycarpa aurata is purple and orange, Atriolum robustum is green, and the blue is from the genus Rhopalaea. (Nick Hobgood)

There are around 3000 species of Sea Squirts aka Tunicates!

Above, Corella parallelogramma by Mark N Thomas

They are found in salt water throughout the world!

They are our closest invertebrate relatives!

Above, Photo by Chas Anderson

They are called Sea Squirts because if they are touched or alarmed the muscle will suddenly contract forcing the water inside to shoot out!

Sea Squirt larvae look like frog tadpoles!

Above-

A deep-water larvacean (aka “sea tadpole”) inside its mucous “house,” which concentrates food from the water prior to reaching the animal’s mouth. (Hidden Ocean 2005, NOAA)

As larvae they swim around in the ocean current, and when they find a food rich environment they use sucker to attach to a rock, dead coral, boat dock, or mollusk shell!

Above, Photo by prilfish

Then they begin metamorphosis!

Above-

Tunicate larvae resemble tadpoles (developing frogs). (Van Name, 1945)

Their notochord begins to shrink and is absorbed into the body, the tunic forms as the transformation continues and finally it becomes an adult Sea Squirt!

As an adult it will now feed on tiny particles found in the water, primarily bacteria!

Above, Blue Bell Sea Squirt (or Tunicate) - Perophora namei by Jim Greenfield

There are two types of sea squirts- solitary and colonial!

Both have 2 siphons. The Oral Siphon receives the nutrient content in the water, and the Atrial siphon excretes the waste!

Colonies are formed when a newly settled larvae changes into an adult. It then splits or 'buds' producing new individuals!

Above, Clavelina sp. by Jim Greenfield

Colonies can range from a few centimetres to several metres depending on food supply and predation!

Colonial Sea Squirts share a common tunic and sometimes and also sometimes share the atrial siphon!

They have a digestive system similar to ours, complete with an esophagus, stomach, intestines and a rectum!

Sea Squirts act as ocean purifiers, as they consume bacteria. They can also absorb zinc and vanadium, indicating heavy metal presence within their ecosystem!

Above [An obligatory Nudibranch!], Striped sea slug snacks while strolling on a sea squirt by Nick Hobgood

All photos and info found here, except where indicated!

And as always my usual disclaimer- I'm not an expert in anything, I just enjoying finding and sharing interesting things.... Any mistakes are mine and I'll correct them if you let me know in the comments 👍

edit re-uploaded main image as it wasn't showing

edit 2 changed 'ancestors' to 'relatives' in the title

Lovely story from The Guardian

It was September 2014. I’d just started working front of house in a fancy hotel in Edinburgh. I spent most of my shifts with a paper napkin pressed to my nostril, as I had been getting lots of nosebleeds. I would soon find out why.

A few weeks earlier, I’d been travelling in Vietnam. I had rented a moped and had the time of my life driving around. I soon crashed but luckily was wearing a helmet, so only got a small bump on my head.

A few days afterwards, I started to intermittently spot blood from my right nostril. I assumed it was from the crash and didn’t think too much of it. I was 24 and too busy partying to take anything like that seriously. I danced the nights away while ignoring the persistent blockage in my nose.

Reality came flooding back after returning to cold Glasgow. Nothing had changed with my nose, so I went to the GP. The doctor told me that it didn’t sound like anything to worry about. I was advised to use Vaseline on the area to keep the nostril lubricated and was sent on my way.

A week later, I moved to Edinburgh for my job. That’s when I started to feel frustrated with my constantly stuffy nose. I wasn’t in pain, but sleeping was difficult. I would blow my nose to try to clear the blockage, but it would only lead to nosebleeds. Things started to get particularly weird when I was having showers. Through all the humidity, I could feel a thick, slimy thing moving down my nose.

I had a day off work; it had been a month since I returned from abroad. My friend Jenny was coming from Glasgow to meet me for dinner. I was in the shower when I felt the all-too-familiar feeling, but this time I glimpsed something hanging out of my nostril. I jumped out and raced to the mirror, frantically wiping off the steam. I saw a clot hanging out – then recoiled in horror when I saw ridges running along a thick black body.

I rushed out of the house to see my friend, screaming, “It’s a full-on worm!” Jenny knew about the problems I’d been having with my nose, but she didn’t believe me at first. I stuck my nose in the air so that she could see for herself. Her mouth hung wide as she gaped and said: “Yep, there really is a worm in there.”

At first, it was the most hysterical thing that had ever happened to us. We couldn’t stop laughing. Because it had been in there for so long, I felt very blase about the whole thing. We rang the NHS helpline. The call adviser was crying tears of laughter over the phone, as it was the most bizarre thing she’d heard.

We went to A&E. Doctors were bewildered and didn’t take me too seriously at first. But once the nurse looked up my nose, she gasped. I was placed on a gurney as they stretched my nostril open with forceps. The doctors spent 30 minutes using different tools to try to prise the leech away. Leeches release an anaesthetic when they bite so they can stay on a body for longer, which is why I couldn’t feel the pain before – but it was agony when the doctors tried to pull it out. When they finally succeeded, I felt a wave of cold air shooting through the blocked nostril. It was like being in a nightmare, seeing the leech held up high, squirming. It was longer than my finger.

I’d swum a lot on holiday, so we guessed that it most likely came from there rather than having anything to do with the motorcycle accident. The leech was put in a jar and sent to a specialist hospital in London for further testing – they were worried that it may have passed on further diseases to me. Suddenly, something that was so funny seemed much more serious.

Luckily, all of my tests came back clear, and I had no side-effects. I was given the leech back in a pot and told to dispose of it. The leech was rock hard because it had so much of my blood inside. It made me squirm just looking at it.

Now, a decade later, the story of the leech and me has become a go-to anecdote whenever I meet someone new. I even had someone message me on LinkedIn recently asking about it. So while the leech was attached to me in a very physical sense, I guess we’re still attached metaphorically. But I’m very glad it’s out.

Main photo by Ocean Networks Canada

Above photo via MBARI

Sea Pigs (Scotoplanes) are a type of Sea Cucumber

They live in the deep sea, specifically on the abyssal plain up to depths of 5000m

They can grow up to 4-6 inches

They have 6 pairs of enlarged tubal 'feet', and use water cavities in their bodies to inflate and deflate them in order to move around, as well as ten buccal tentacles lining their oral cavity

Above photo via Ocean Networks Canada

They live on the sea floor feeding on delicious foods such as decaying animals, poo and mucus!

If they are disturbed they can swim! In fact some Sea Pigs spend most of their lives swimming around in the water column using their frontal and anal lobes to propel themselves around!

They will gather in large numbers around whale corpses to feed and perhaps find a mate

Above, a congregation of Sea Pigs feeding on a whale carcass via MBARI

Their reproductive system is unique, the males only have one testis, and the females one ovary!

Also their skin contains a toxin called holothurin which is poisonous to predators...

They have a poorly defined respiratory system, and have to breathe through their anus!

Above photo by Oceans Network Canada via Treehugger

As they have evolved at deep sea depths they would swell and burst if brought to the surface

They are hosts to several parasitic invertebrates, including snails and small crustaceans

But wait! What's this...?

Above Above photo via MBARI

What's that red thing hiding under the Sea Pig?

Above photo via wikipedia

It's a King Crab!

Above photo via MBARI

Peek-a-boo!

Above photo by Josi Taylor via MBARI

Why do King Crabs ride on Sea Pigs?

Usually King Crabs like to hide in rocks and seaweed from predators, but it is thought that these King Crabs were carried by the ocean current while they were small larvae and ended up in the deep sea....an area devoid of such hiding places!

“It’s like looking for a port in the storm,” said James Barry, ecologist and lead author of the study at the Monterey Bay Aquarium Research Institute (MBARI) in Moss landing. Sea cucumbers are the ports or the biggest buildings to hide next to in an otherwise empty area.” Scientific American

Above, ' This photograph of the muddy seafloor offshore of Monterey Bay shows three Scotoplanes sea cucumbers, at least two of which are host to juvenile king crabs.' MBARI

Barry and his team found a total of 600 juvenile crabs, 96 percent of which were either clinging onto sea cucumbers or hanging around right next to them. Sometimes the crabs were upside down holding onto the belly of the sea pig and other times they were crawling on its side. In some cases, the researchers found more than one crab on a sea cucumber. Of the nearly 2,600 sea cucumbers videotaped, 22 percent had at least one juvenile crab clinging to them

Goodbye Sea Pig, and your King Crab jockey!

Above photo via MBARI

edit- I completely forgot to add my sources.....wikipedia and MBARI, unless specified

Remnants of prehistoric worm Radnorscolex latus, unearthed in Herefordshire. Photograph: Richie Howard/Luke Parry/National History Museum/PA

An ancient worm unearthed in Herefordshire was a carnivorous predator that shoved its throat out to catch and eat prey, according to scientists.

The creature, named Radnorscolex latus, was found at a disused Victorian quarry site in the village of Leintwardine, near the Welsh border.

This marine worm is believed to have lived on the ocean floor about 425m years ago, when the region was under water. Analysis suggests it had a retractable throat that could extend out on to the seabed to capture prey hidden within the sediment.

According to Dr Richie Howard, curator of fossil arthropods at the Natural History Museum, Radnorscolex is reminiscent of giant worms in the Hollywood blockbuster Dune.

Howard said: “We think they weren’t too picky when it came to feeding and likely just shoved their throat out into the mud and grabbed anything they could find.

“They certainly make you think of the sandworms in Dune in that respect.”

Although fossil remains of Radnorscolex were first discovered a century ago, the technology was not advanced enough to allow palaeontologists to examine these in great detail.

Experts from the Natural History Museum in London used state-of-the-art imaging techniques to analyse the remnants.

Findings showed Radnorscolex had rows of sharp teeth and hooks on its head, which it would have used to anchor itself to the ground and drag its body forward to move.

Despite being a predator, analysis suggests the creature only grew to be about 8cm long.

The researchers said Radnorscolex belongs to a group of extinct worm-like animals known as Palaeoscolecids, which were wiped out completely about 400m years ago due to rapid climate and sea level change.

The findings are published in the journal Papers in Palaeontology.

Image and text from the original article in The Guardian

Main photo by Dusan Beno

Above, 'Chrysis semicincta' by Jessica JOACHIM

Above, 'Cotinis Mutabilis, also known as the Figeater Beetle' by Cotinis Mutabilis

Above photo by philux66

Above, 'Green Tortoise Beetle, Cassida viridis' by Duncan Cooke

Length; 7 - 10mm.

Distribution; Widespread in England and Wales, although sparse in the north and rarer in Scotland.

Habitat; Grassland, Heathland & Moorland, Farmland, Wetlands, Woodland & Gardens.

Found; April to October.

The Green Tortoise Beetle is one of a group of several closely related beetles. Host plants include White Dead-nettle, Hemp Nettles, Hedge Woundwort, Gypsywort and Water Mint and is often found in gardens. When disturbed, the adults behave just like tortoises, retracting their antennae and feet, and pulling their 'shell' tight down around them as they grip tightly on to the leaf they are.

The Green tortoise beetle is round, flattened and lime green. Tortoise beetles are easy to identify as a group, but there are several closely related species that are very difficult to tell apart. the Green Tortoise Beetle is entirely green and generally lacks the markings of other species. Cassida viridis is similar to Cassida rubiginosa but can be distinguished by the rounded rear corners of the pronotum which are sharp in C. rubiginosa. It is also usually more apple green in colour.

Adults spend a few weeks feeding on host foliage and possibly also pollen before mating in April and May and ovipositing from May to July. Between 1 and 10 eggs laid in firm-walled and distinctive egg cases which are stuck to stems or under lower leaves and covered with frass and leaf fragments. They hatch within 6 to 10 days and the larvae initially feed below the leaves, moving to the upper surface as they grow, they pass through 5 instars and develop rapidly. They are fully grown within 4 to 6 weeks.

Pupation occurs from June to September. The fully grown larvae move to stems and petioles and become attached by a secretion before they pupate. This stage is also brief, generally lasting about a week, and new generation adults emerge from July to October.

Above 'Green vegetable or Shield bug' by Bernard Spragg. NZ

Nezara viridula, commonly known as the southern green stink bug, southern green shield bug or green vegetable bug, is a plant-feeding stink bug. Believed to have originated in Ethiopia, it can now be found around the world.

Above, 'Golden Beetle' by Ivan Anisimov

-Leeches are found all across the world, except Antarctica, so far around 700 species of leech have been described. Approximately 100 are marine, 480 freshwater and the remainder are terrestrial different species…. All of these are divided into 2 major infraclasses

1. Euhirudinea: the 'true' leeches – marine, freshwater and terrestrial – which have suckers at both ends and lack chaetae (bristles)

2. Acanthobdellida: a small northern hemisphere infraclass ectoparasitic on salmoniid fish, which lack an anterior sucker and retain chaetae.

The Euhirudinea is further divided into two orders:

1. Rhynchobdellida: jawless marine and freshwater leeches with a protrusible proboscis and true vascular system

2. Arynchobdellida: jawed and jawless freshwater and terrestrial leeches with a non-protrusible muscular pharynx and a haemo-coelomic system. source

Above image from here

-Leeches are segmented parasitic or predatory worms, and are closely related to earthworms

-They have suckers at both ends of their bodies and use them to travel around by ‘looping’ or ‘crawling.’ Some species can also swim like an eel

Above image by Chiswick Chap via wikipedia

-All leeches are hermaphrodites, although they prefer to find a mate to exchange sperm packets with…..

-They can live in both fresh and salt water, and there are some which are terrestrial, living on the ground or on low growing plants waiting for a meal to brush past

-Some species can even survive extremely dry conditions by burrowing into the soil where they can stay without any water. Their bodies contract, becoming dry and rigid, but within 10 minutes of water contact they emerge, ready to go!

-The most famous type of leech is probably the European medicinal leech (Hirudo medicinalis), which was used extensively in the past (the first recorded case being Ancient Egypt 3500 years ago). Its populations in the wild have dropped significantly due to over exploitation for the medical industry

Photo by Neil Phillips

-Manchester Royal Infirmary used 50,000 leeches in one year in 1831, but use of the medicinal leech started to decline during the late 19th century. However, since the 1970’s they have made a comeback due to their use in micro surgery. Their anti coagulant saliva allows blood to keep flowing, and wounds to stay open during reattachment and reconstructive surgery!

Photo by Armando Caldas

-Hirudo medicinalis are ‘jawed’ leeches (Gnathobdellida). They have 3 jaws resembling rotary saws which have around 100 sharp edges used to incise the host which leaves a Y shape wound on the skin. They are so tiny their bite is virtually painless. Blood suckers are only one type of leech though...

-Other species of jawed leeches can have between 1 and 3 jaws. Detrivorous species use their jaws for chewing and swallowing soft food particles, whilst the carnivores use them to cut a hole in the body walls of invertebrate prey (molluscs, worms, insect larvae), in order to suck out the soft innards.

Photo by Manuel Krueger-Krusche

-The largest fresh water leech in the world is Haementeria ghilianii, (the Amazon giant leech) which can grow up to 450mm long and 100mm wide. One end of the leech contains its head, and the other the proboscis, which is 10cm long and like a hypodermic needle. It is capable of feeding on humans, rabbits, cattle and horses and a report from 1899 claims it could feed in such numbers that it could kill cattle and birds

Photo by Anonyme973

-Its male reproductive parts can weigh 3-5 grams, and the female parts weigh in at 10 grams, they are capable of producing egg clutches ranging from 60 to 500 eggs

-It was thought to be extinct in 1893, however during the 1970s Dr Roy Sawyer discovered 2 specimens in a pond in French Guiana. One of these was transferred to the UC Berkeley where it was part of a ‘breeding’ program. Named ‘Grandma Moses’ it managed to produce 750 offspring over 3 years, and helped to bring the Amazon Giant Leech back from the brink of extinction

Dr. Roy Sawyer and friend photographed by Timothy Branning

-When it died, ‘Grandma Moses’ was given to the Smithsonian National Invertebrate Collection where it still resides preserved in alcohol!

The Grandma Moses leech

-A small minority of leech species have no jaws or teeth (these are the worm leeches or Pharyngobdellida). Instead they swallow their prey, usually small invertebrates, whole!

-The Kinabalu giant red leech (Mimobdella buettikoferi) is probably one of the longest leeches, growing over 50cm.

Above photo from here

-It lives only on Mt Kinabalu, Borneo and feeds on an equal giant prey, the Kinabalu giant earthworm (Pheretima darnleiensis)

Kinabalu giant earthworm, Photo by Chien Lee

Kinabalu giant earthworm, Photo by Ivan Kwan

-It lives among the leaf litter and soil, and both leech and worm are usually seen during or after a downpour….

Found here

A hungry leech is very responsive to light and mechanical stimuli. It tends to change position frequently, and explore by head movement and body waving. It also assumes an alert posture, extending to full length and remaining motionless. This is thought to maximise the function of the sensory structures in the skin. source

Photo from here

-When it finds a worm it begins to grope towards an end, then it begins to suck…..

Here is a delightful film of just that!

Also on youtube

Above photos by Paul Williams

-Almost all leeches have at least one pair of tiny eyes, however some can have up to 16, these are arranged in patterns although their vision may only be able to detect light and dark.

Photo by Paul

-Glossiphoniid leeches demonstrate exceptional parental care for their offspring, which is the most highly developed for the annelids (the worm species). They produce a membranous bag in which they keep their eggs, this is carried on the underside of their bodies. When the young hatch they attach onto their parents belly (but not with a feeding bite) and the parent carries them to their first meal!

Above photo by Maralee Joos

Above photo by Duncan Cooke

Above photo by Duncan Cooke

Helobdella, which have a world-wide distribution, display the most highly developed parental care system: they not only protect but also feed the young they carry. This results in the young being much larger when they leave the parent and, presumably, in higher subsequent survival. source

Above photo by Dick Todd

-Leeches are quite hardy, some can survive in low oxygen environments, others at low ocean depth such as….

Bathybdella sawyeri occurs at 2447–2623 m depth at the Galápagos Rift and the Southeast Pacific Rise and Galatheabdella bruuni has been found at depths of 3880–4400 m in the Tasman Sea (Richardson and Meyer, 1973; Burreson, 1981; Burreson and Segonzac, 2006). However, the leech that occurs at the greatest depth is Johanssonia extrema described by Utevsky et al. (2019) that was collected at a depth of 8728.8 m in the Kuril-Kamchatka Trench. Occurring at that depth, J. extrema withstands pressure that is over 870 times greater than that at sea level. source

-Some species have evolved to live within the extreme dark of caves, others to withstand the extreme cold of arctic waters, one lives in waters of high alkalinity with the addition of arsenic at levels >110mg/L

Members of Praobdellidae are characterized by feeding primarily from mucous membranes [mouth, throat, nasal passages, and under the eyelids] particularly of mammals, but also from the skin of amphibians. This behavior is considered equally unnerving by both academic and public audiences. source

-A backpacker returning from Vietnam discovered she had also brought home a leech passenger that was attached inside her nostril "At one point, I could feel him up at my eyebrow," she said. It was removed at Liverpool Hospital, before it could reach her brain…. She than kept the leech named ‘Mr Curly’ as a pet…. delightful!

-One other leech has evolved to live in another type of orifice...a hippos anus!

…...Placobdelloides jaegerskioeldi inhabits one of the most extreme environments of all of the leeches that invade orifices, the rectum of the hippopotamus (Oosthuizen and Davies, 1994). Adult P. jaegerskioeldi have papilla-bearing tubercules that are postulated to provide traction against the anal-wall of the hippopotamus (Oosthuizen and Davies, 1994). This species is also one of the few glossiphoniid leeches that can actively swim and swims (even upstream) to its hippopotamus host (Oosthuizen and Davies, 1994). source

As always, I’m not and expert I just like finding and sharing fun things I find on the internet. Any mistakes or errors, let me know in the comments and I’ll edit my post!

All information via wikipedia-

Leech

Giant Amazon Leech

Medicinal Leech

Kinabalu Giant Leech

Glossiphoniidae

Except these-

Bogleech

Smithsonian Magazine

Australian Museum

buzzfeed

Leeches in the extreme: Morphological, physiological, and behavioral adaptations to inhospitable habitats

mentalfloss

The Evolution of Parental Care in Freshwater Leeches

Main photo 'Wasp' by Joshua Coogler

Above, 'Pachyrrhynchus ocelatus' by Raúl García Navarro

Above, 'Mite SP' by Harry Sterken

Above, 'Golofa claviger - Giant rhinoceros beetle' by André De Kesel

Above, 'Jumping spider SP (male)' by Harry Sterken

Above, 'Alcidodes Ocellatus' by Raúl García Navarro

Title photo by David Guillemet

I've only just discovered that this exists...

Orangutan crab (Achaeus japonicus)

.....it has relatively long arms, which are thickly covered with fine hairs, red or reddish brown in colour, and often laden with small bits of debris for further camouflage....

....frequently, but not always, found in association with the bubble coral wikipedia

Above photo by scubaluna

-They're found in the Indo-Pacific region, have a naturally shaggy pelt, and like to decorate themselves with debris, small plants, sedentary animals, shells and gravel to enhance their natural camouflage!

Above photo by Bruce Versteegh

-During the day like to hang out in Bubble Coral, which swells its bubble-like structures to maximise its intake of light....

Above photo by Niall Deiraniya

-At night the coral 'deflates' and the Orangutan crab wanders off in search of food

Above photo by Dennis Young

The last 2 photos made me piss myself laughing....it looks like a fuzzy little muppet!

Info from wikipedia and here