Earliest flying mammal discovered
BBC NEWS | Science/Nature | Earliest flying mammal discovered
The report says that the fossils of a flying-squirrel-ish animal from 125 million years ago or so were found. Not, of course, that they think this group was ancestral to squirrels or bats.
Given the age of these critters, though, we can have yet another idea about why birds might have developed flight: to go catch them.
