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this post was submitted on 20 Jun 2025
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Are you guys really that stupid? Nature, ah, finds a way. It's called evolution.
Evolutionary adaptation doesn't happen that fast, and the name of the bird is literally a snail kite lmao.
Guess what they eat?
Old snail kite: I hate foreign food
Young snail kite: Get wrecked boomer, these apple shits are lit.
Old snail kite: Dies of starvation.
Young snail kite: fucks.
And so the cycle continues.
Kites?
Evolution is just the change in allele frequency of a population over generations. This includes 90% of the population dying before they figure out new food.
Learned behavior is rarely expressed in genetics.
I wonder which came first, the invasive snails that look about the same as the other snails they were eating or the population decline of kites?
The fittest in this case would be the kites that could survive the lean times before the new snails had time to spread, which could mean quite a lot of things but probably isn't related to them being picky about what snails they were eating as they starved to death.
This isn't learned behaviour though. The kites tried eating the invasive snails immediately, but they were too large to be cracked by their beaks, being two to five times larger.
The change to eating the larger non-native snails was facilitated by larger beaks seen in the years after the invasion.
It seems like the local applesnail had a crash due to drought in the early 2000's (partly caused by the draining of wetlands for development), and the invasive island applesnail was first seen in 2004. There are even more species of invasive snail now, but the opportunity likely arose because of a population crash.
The fittest in this case are the kits that can eat the snails they find, not by being less picky, but by having larger beaks.
Fruit?