Add Yahoo as a preferred source to see more of our stories on Google. Vampire bats have complex social relationships. Samuel Betkowski/Moment via Getty Images You can probably picture a vampire: Pale, ...

The following is an excerpt from Bite: An Incisive History of Teeth, from Hagfish to Humans by Bill Schutt. When you purchase products through the Bookshop.org link on this page, Science Friday earns ...

Fangs belong to more than just snakes and predators. A humble reef fish, a wild pig, and even a deer have evolved some of the ...

The hairy-legged vampire bat, Diphylla ecaudata, feeds primarily on the blood of birds. It is one of three living species of vampire bats — all of them noctilionoid, and all with sharply reduced ...

Vampire bats are the only exclusively blood-drinking mammals in the world, coming out at night with pointed teeth to pierce flesh. Vampire bat saliva has an anticoagulant that increases blood flow, ...

They don't know it, but Darwin's finches changed the world. These closely related species—native to the Galapagos Islands—each sport a uniquely shaped beak that matches their preferred diet. Studying ...

With gargoyle-like faces, razor-sharp fangs and an insatiable thirst for blood, vampire bats are nightmare fuel. And that’s before they start running. Unlike most bats, which largely avoid the ground, ...

You can probably picture a vampire: Pale, sharply fanged undead sucker of blood, deterred only by sunlight, religious paraphernalia and garlic. They're gnarly ...