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Short answer It seems like blue jays form their crests as adolescents, after their first post-juvenal molt before their first winter. Longer answer The top of the head of a bird is called the pileum, with the very top called the crown. As far as I can tell there is no particular distinction between "crown feathers" and "crest feathers", ...


5

Could and elephant paint from its own creativity? maybe but unlikely Gorilla and chimps can paint creatively. elephants might be able to is allowed although studies on elephants in zoos show elephants do not have much desire to paint. elephants are not as visually oriented as apes, so creative painting may not hold enough attraction to do so, even if they ...


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Interesting question! While it doesn't exactly address the topic of your question, I think the paper Is painting by elephants in zoos as enriching as we are led to believe? might have some insight. I originally found this paper from the animal-made art wikipedia page, which states that: The elephants draw the same painting each time and have learned to draw ...


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This is one of the numerous species of tern. They are common birds of the seashore and rivers world-wide. The characteristic forked tail and the black cap on the head is what gives it away. It is hard to say for sure given the chromatic aberration altering the colours, but this is likely to be either from the genus Sterna (particularly the Arctic tern or the ...


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The noxious element of aposematism evolves first. Take a second to think about how aposematism works, you will notice the underlying mechanism works even without distinctive coloration. Bad at camouflage means more likely to be spotted which also means more likely to be identified. If a wolf eats a pale green frog and gets sick it is likely to avoid pale ...


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This is a planthopper nymph. These are a quite diverse group of insects found worldwide. Which one you have is open to further answers, and will be based on your locality and the species of plants and insects in that location. The furry "tail" and the fish-like mouth-parts/head give it away.


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