Icaronycteris index--fossil bat Bats pop out of nowhere, already flying. Four of the five oldest known bats evidently were capable of echolocation. All of them were fully capable of flying. No living or fossil gliding intermediates are known.
Babirusa Skull -- is a hairless, prehistoric-looking member of the pig family is found in Indonesia. Some scientists believe it may be more closely related to the Hippopotamus. Only males sport these impressive, wildly bizarre tusks.