I mean, if some would find the sceleton of a turkey a few million years from now, he would probably never assume that it had a wattle, or probably even feathers.
In: Biology
They use DNA, and fossil records of the skin/feathers, as well as the skeleton. They also guess based on present day physical attributes/habits/noises/evolutionary traits etc. of their closest living relatives. That helps them determine coloring, and habitats, which helps determine other physical attributes, and so on. They get as much information about the animal first, and then they form a picture from all of it. It’s not just the skeleton.
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