Male and female birds are often quite different. Looking at two individuals of radically different color, it’s sometimes easy to forget this. I often talk to people who think they have multiple kinds ...

Hummingbirds are among the smallest birds, and they are known for being beautiful, petite, and fast. After all, they can beat their wings up to 80 times a second! Like many creatures in the animal ...

Talking about the differences between males and females at a group dinner is a sure-fire way to way to get laughs while treading dangerously. In this PC world, most of us have become gun-shy about ...

CHAMPAIGN, Ill. — In 1868, the naturalist Charles Darwin wrote that differences in plumage coloration between male and female birds of the same species were likely the result of sexual selection: ...