Known as Dalhousiella yabukii, the worm resides inside a glass sea sponge—a simple marine animal that forms a glass-like skeleton—in the cold, dark waters off the coast of Japan. And it’s just one of ...

The arctic fox completely swaps its dark summer coat for a snow-white one when winter is coming. The kidney garden spider ...

A Bright Orange Fish That Looks Like Mr. Snuffleupagus Turned Out to Be a Whole New Species ...

Octopus Sex Just Got Weirder. In Addition to Depositing Sperm, Males’ Specialized Mating Arm Can ‘Taste’ Female Hormones The ...

It's not only humans that do some sketchy, questionable stuff. Animals in the wild have their own peculiarities, too, and these weird animal behaviors usually don't go unnoticed. And by weird, ...