Animals & Nature

The Andean Condor Can Fly 100 Miles Without Flapping Its Wings

A Quieter World Has Made the Sparrow’s Song More Alluring to Mates

16 Memes That Will Make You Do a Double-Take

You Can Increase Your Health and Happiness With Biophilic Design

Scientists Are Using Human Cells to Enhance Monkey Brains. Is It a Good Idea?

Gay Penguins Become Adoptive Parents for the Second Time

These Gorgeous Photos Show How the Sun Never Sets on Alaskan Summers

A Bit About Castoreum, a Flavoring Made From Beaver Secretions