Bats. They are the only mammals that fly. (Mammals are warm blooded.) There are more than a thousand species of bats. They have furry, leathery wings. - ppt download
Comment | Vampire bats aren't the monsters we thought they were - Keele University
Blood Ties: Vampire Bats Build Trust to Become Food-Sharing Pals - Scientific American
Bloodthirsty Behaviour | New Trail
Vampire bats aren't the monsters we thought they were
FAQ - Bat Conservation International
The Blood Feeding Vampire Bats – The Sanguivorous Mammals!!
Bats in the Desert - DesertUSA
Heat-thirsty bats | Nature
Vampire Bats 'See' Blood with Heat-Sensing Organs | Live Science
What is the Difference Between Warm-Blooded and Cold-Blooded Animals?