The birds-of-paradise are a family of birds that live only in New Guinea, a few surrounding islands, and a small part of adjacent Australia. The 39 species in the family are renowned for the brilliant colors and complex displays of the males—the result of sexual selection by females. Over the course of about 20 million years, these astounding animals evolved from a single ancestor that resembled a crow. Over 30 beautiful birds you will not see anywhere else.