The largest animal on Earth is thought to be the blue whale, but these strange sea creatures can grow even longer — reaching up to 150 feet (46 meters) in length.

There are around 175 species of siphonophores living in the deep sea throughout all of Earth’s oceans, although not every species is found in each ocean. Many siphonophores are long and string-like, but some, like the venomous Portuguese man o'war (Physalia physalis), resemble jellyfish.

Although a siphonophore may look like a single animal, it is actually a colony made up of individual organisms called "zooids," which each have a distinct function within the colony despite being genetically identical. Some catch prey and digest food, while others enable the colony to reproduce or swim. An individual zooid cannot survive on its own because they specialize in one function, so they rely on each other to form a "body."

Early hominins known colloquially as "hobbits" may have been shorter than scientists thought, a new analysis of teeth and bones has revealed.

The 700,000-year-old fossilized remains belonged to Homo floresiensis, an extinct species of exceedingly small humans that once inhabited Flores, an island south of mainland Indonesia, according to a study published Tuesday (Aug. 6) in the journal Nature Communications.

The new research may shed light on when H. floresiensis first evolved its diminutive height.

"Acquiring a large body and large brain and becoming clever is not necessarily our destiny," lead author Yosuke Kaifu, a professor at the University Museum at the University of Tokyo, told Live Science in an email. "Depending on the natural environment, there were diverse ways of evolution not only for animals in general but also for humans."

Archaeologists seeking to learn more about how Neanderthals prepared and cooked their food conducted a series of hands-on experiments with small fowl using flint flakes for butchering. They found that the flint flakes were surprisingly effective for butchering the birds, according to their new paper published in the journal Frontiers in Environmental Archaeology. They also concluded that roasting the birds damages the bones to such an extent that it's unlikely they would be preserved in the archaeological record.

For well over a century, we had the opportunity to study Neanderthals—their bones, the items they left behind, their distribution across Eurasia. So, when we finally obtained the sequence of their genome and discovered that we share a genetic legacy with them, it was easy to place the discoveries into context. In contrast, we had no idea Denisovans existed when sequencing DNA from a small finger bone revealed that yet another relative of modern humans had roamed Asia in the recent past.

Since then, we've learned little more. The frequency of their DNA in modern human populations suggest that they were likely concentrated in East Asia. But we've only discovered fragments of bone and a few teeth since then, so we can't even make very informed guesses as to what they might have looked like. On Wednesday, an international group of researchers described finds from a cave on the Tibetan Plateau that had been occupied by Denisovans, which tell us a bit more about these relatives: what they ate. And that appears to be anything they could get their hands on.

A team of researchers led by an archaeologist at the University of Sydney are the first to suggest that eyed needles were a new technological innovation used to adorn clothing for social and cultural purposes, marking the major shift from clothes as protection to clothes as an expression of identity.

"Eyed needle tools are an important development in prehistory because they document a transition in the function of clothing from utilitarian to social purposes," says Dr. Ian Gilligan, Honorary Associate in the discipline of Archaeology at the University of Sydney.

From stone tools that prepared animal skins for humans to use as thermal insulation, to the advent of bone awls and eyed needles to create fitted and adorned garments, why did we start to dress to express ourselves and to impress others?

A team of geneticists and archaeologists affiliated with multiple institutions in France has uncovered skeletons in an ancient gravesite not far from Paris that show evidence of steppe migrant integration with Late Neolithic Europeans. The study is published in the journal Science Advances.

Prior research has shown that there was a slow migration of herding people from what is now Russia and Ukraine to Europe thousands of years ago. During the migrations, many of the migrants (who were mostly male) produced children with the local farmers they encountered.

In this new study, the research team reports evidence of such reproduction in remains found in an open grave in the Champagne region of France. Skeletons in the grave showed evidence of a native European woman who had produced a child with a steppe migrant.

A controversial bill that would have allowed developers to build on archaeological sites in some environmentally sensitive coastal areas was overhauled on June 19.

Language that would have allowed builders to disturb archaeological resources in the course of development in the coastal Areas of Environmental Concern was removed from House Bill 385 entirely. After being introduced earlier this month, that original proposal met widespread opposition from Native Americans in North Carolina and the state's Department of Natural and Cultural Resources.

The ancestors of Alaska Native people began using local copper sources to craft intricate tools roughly 1,000 years ago. Over one-third of all copper objects archaeologists have found in this region were excavated at a single spot, named the Gulkana Site.

This is the site I’ve studied for the past four years as a Ph.D. student at Purdue University. In spite of its importance, the Gulkana Site is not well known.

To my knowledge, it isn’t mentioned in any museums. Locals, including Alaska Native Ahtna people, who descend from the site’s original inhabitants, might recognize the name, but they don’t know much about what happened there. Even among archaeologists, little information is available about it – just a few reports and passing mentions in a handful of publications.

However, the Gulkana Site was first identified and excavated nearly 50 years ago. What gives?

Archaeology has a data management problem, and it is not unique to the Gulkana Site. U.S. federal regulations and disciplinary standards require archaeologists to preserve records of their excavations, but many of these records have never been analyzed. Archaeologists refer to this problem as the “legacy data backlog.”

As an example of this backlog, the Gulkana Site tells a story not only about Ahtna history and copperworking innovation, but also about the ongoing value of archaeological data to researchers and the public alike.

Archaeologists have analyzed the chemical makeup of glass beads from across the Great Lakes region of North America, revealing the extent of Indigenous influence on transatlantic exchange networks during the 17th century AD.

Glass beads were a key component of trade between Europeans and Indigenous Americans during early interactions between the two continents. One of the key actors in these networks was the Wendat Confederacy, which was based in southern Ontario until around 1650, when some Wendat people moved into the Western Great Lakes region.

Beads are a key symbol of European colonization, as they were produced in Europe but had a lasting impact on Indigenous Americans, with beadwork continuing to be integral to many Indigenous cultures to this day.

As such, it was thought that trans-Atlantic bead exchange networks must have been driven by European colonization. The first Europeans colonized the Western Great Lakes region around 1670.

A research project led by the Universitat Rovira i Virgili (URV) and the Max Planck Institute has studied the remains of 25 individuals buried between the 12th and 15th centuries in the castle at Zorita de los Canes, Guadalajara. After exhuming the remains from the castle's cemetery, the research team was able to determine the diet, lifestyle and causes of death of the warrior monks, who were members of the Order of Calatrava.

The results, published in the journal Scientific Reports, have determined that 23 of the individuals died in battle and that the knights of the order followed a diet typical of medieval high society, with a considerable intake of animal protein and marine fish, in an area far from the coast. Unexpectedly, Carme Rissech, a researcher at the URV, identified the remains of a woman among the warrior monks.

Moose populations have been dwindling for years across the country due to many contributing factors, but new research at Washington State University has found the impact of Eleaophora schneideri, also known as the arterial worm, has likely been underestimated.

Researchers examined recently deceased Shiras moose in Idaho between March 2020 and July 2022. While the parasitic roundworm E. schneideri was not detected in any of the animals found in north Idaho, it was present in 10 of the 20 adult moose studied in the southeastern portion of the state. Nine of the infected not only had adult worms in their major arteries but their brains were littered with microfilariae, the microscopic early life stage of the worm.

"The microfilaria are just scattered throughout their brains, and even though the damage from each is miniscule, they're basically shot-gunning the whole brain," said Kyle Taylor, a pathologist at WSU's Washington Animal Disease Diagnostics Laboratory. "We hypothesize the cumulative effects of large numbers of microfilariae in the brain may be associated with increased morbidity or chance of mortality, with mortality more likely in cases with larger numbers of worms."

One of its favorite prey is the Arizona bark scorpion (Centruroides sculpturatus) — whose venom is potent enough to kill humans.

To get around this, the southern grasshopper mouse reduces the venom's effects by shutting down the chemical channel that transmits the pain signal to the brain when that particular venom is present. This means they are essentially numb to the pain — although researchers still don't know why the toxin isn't lethal to them.