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 ...

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 ...

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, ...

You can probably picture a vampire: Pale, sharply fanged undead sucker of blood, deterred only by sunlight, religious paraphernalia and garlic. They’re gnarly creatures, often favorite subjects for ...