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 ...

There are a lot of images that come to mind when you think of bats. Long webbed wings, sharp teeth, the dark and cold caves they like to inhabit throughout much of the year. When students at the ...