It's quite a 'tail show.'" Only the males are peacocks while the females are peahens. But they're both called peafowl. A mature peacock can have up to 200 feathers in its tail with each feather ...

When a male peacock spider is ready to find a mate, he really puts on a show. He has tiny ... male peacock shows off his ...

While it head-butted his theory of natural selection, Darwin emerged with the theory of sexual selection as a way to ...

Looks are certainly important for the peacock ... female. Peahens often choose males for the quality of their trains -- the quantity, size, and distribution of the colorful eyespots. Experiments ...