The hunter wants the bird to sing for him, but during the day she pretends to be asleep, only singing at night. One night a bat flies past and asks the bird why she only sings at night.

The white-throated needletail was long considered the fastest flier, but the bird, or any other avian, is not. The ...

Birds usually have a prominent breast keel where heavy muscles ... Smithsonian Design Museum Bridges and Bats on Lattice Cooper Hewitt, Smithsonian Design Museum Flying Bats Freer Gallery of Art and ...

you might mistake a bat for a bird without feathers, but they are actually in two very different classes. Birds are aves and bats are mammals. Bats are the only true flying mammals in the world.

Comparing bats and birds allows for the testing of this idea because they do not share a common flying ancestor and therefore constitute independent replicates to study the evolution of flight.