Mammals and birds today are warm-blooded, and this is often taken as the reason for their great success.
Click here for original story, World’s greatest mass extinction triggered switch to warm-bloodedness
Source: ScienceDaily
Mammals and birds today are warm-blooded, and this is often taken as the reason for their great success.
Click here for original story, World’s greatest mass extinction triggered switch to warm-bloodedness
Source: ScienceDaily