Rabbits, aka bunnies, are instantly recognizable little creatures that many of us have welcomed into our lives as pets.

Ten thousand years ago, mastodons vanished from South America. With them, an ecologically vital function also disappeared: ...

Penguins are an enduring favorite in aquariums all over the world. Even videos are fun to watch, as penguins dive into the ocean or waddle along the shores of Antarctica. Although there are a number ...