There are 10,000 species of birds, but some traits unite every single one. Let's learn some universal characteristics of birds! Please subscribe to continue learning what makes life AWESOME: https://BioBush.tv/subscribe

Birds have been adapting and specializing for a long time, so there are many lifestyles, body shapes, and unique adaptations. In this video we go through the most interesting universal traits in birds.

This list is not exhaustive for two reasons. First, I didn't want to go through every single organ (kidneys, bone marrow, brain) just because that would take too long and not be interesting to watch. Second, there are some things that we just don't know at this point. Can every bird in the world sleep half their brain at a time? Every one we have checked can, but we haven't checked very many, like maybe twenty. Can every bird regrow the bristles in their cochlea to recover from deafness? That's pretty interesting, but we have only checked like five species. It's easier to find an exception than to prove that something is universal. All this to say, there are really cool, universal traits which are not on this list.

Also, this video is likely to become less accurate over time as we learn new things about birds. All it takes is the discovery of one species of bird that lays soft-shelled eggs and this video will be wrong. Or a bird that has already been discovered but I did not know about (aka. most bird species). Let me know if you know an exception, because I like learning too.

But I hope this teaches you something new and useful about birds!

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