Question

According to the fossil record, how many times has flight evolved among vertebrates?
A) 1
B) 2
C) 3
D) 4
E) 5

Answer 1

Vertebrates

Flight has evolved independently in vertebrates at least three times: in pterosaurs, birds, and bats.



Read more: Flight - Biology Encyclopedia - body, animal, different, organisms, first, part, ways, Insects, Vertebrates http://www.biologyreference.com/Ep-Fl/Flight.html#b#ixzz202NeNtpB