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GaryK [48]
3 years ago
12

Did the common ancestor of birds and mammals have warm blood?

Biology
1 answer:
s2008m [1.1K]3 years ago
3 0

Probably not, but the matter is still being debated. The nearest common ancestor of birds mammals was probably an eight- inch long reptile that lived anywhere between 320 and 340 million years ago. Its an sector 360 million years ago was still a fish , four- footed, with lungs, but relying mainly on gill- breathing, and just occasionally dragging itself on to land for brief periods.

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