The best example of a flying mammal is the bat. The bat has been around for about 60 million years and only rodents are a more diverse group of mammals than bats.
(The Great Courses – A New History of Life)
The best example of a flying mammal is the bat. The bat has been around for about 60 million years and only rodents are a more diverse group of mammals than bats.
(The Great Courses – A New History of Life)