It is one of the largest flying birds on earth and feature the longest wingspan of any living bird, reaching 12 feet long.

Some species of birds like geese save energy by flying in close formation. Airliners could use a similar trick to burn less ...

There are about 50 species of flying squirrels ranging across most ... They make their homes in in woodpecker holes, nests abandoned by birds, or tree cavities in forests, woodlands, and jungles.