birds, dinosaurs (+)
Crows (and other birds in the corvid family) like sneaking up on other animals and pulling their tails. Animal researchers aren't sure why they do that, since it doesn't seem to have a clear purpose for establishing territory or stealing food or anything, so it's probably just because they think it's funny.
About tail-pulling behavior: https://arstechnica.com/science/2016/01/crows-the-tail-pulling-food-stealing-bird-prodigies/
When I had pet chickens, I was surprised to see they liked sneaking up and pulling other animals' tails, too. My hens would pull my dog's tail, just like how ravens pull wolves' tails. Where did chickens get it from?
Here's how closely different kinds of birds are related to one another, and to dinosaurs:
This family tree shows that crows aren't closely related to chickens. Chickens are more closely related to non-bird dinosaurs than to crows. Could tail-pulling behavior be innate to most birds?
Could it be that dinosaurs liked pulling tails, too?
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