From spraying mates with urine to changing one's sex, these are the most intriguing courtships in the animal kingdom.

Every spring in Manitoba, up to 100000 red sided garter snakes emerge from underground limestone dens, forming swirling mating balls. Why do they gather here in such astonishing numbers?

After a summer lull in U.S. cases of avian influenza in both poultry and dairy cattle—and no human infections reported in the country since February—the virus is back. The currently circulating bird ...

Infectious bursal disease (IBD) is an immunosuppressive poultry disease. Reported globally, it can infect young broilers from 2-5 weeks of age. Clinical signs include very virulent or subclinical ...

(This article forms a part of the Science for All newsletter that takes the jargon out of science and puts the fun in! Subscribe now!) The transition from fins to limbs is one of the most important ...

Evolution has adapted the digits of mammals for an enormous range of uses, from our opposable thumbs to the spindly digits that support bat wings to the robust bones that support the hoofs of horses.

From worries about food safety to egg prices, Americans have questions about the bird flu. This strain of bird flu, also known as H5N1, is not entirely new. It's been detected in a variety of bird ...

The death of an Oregon house cat and a pet food recall are raising questions about the ongoing bird flu outbreak in the United States and how people can protect their pets. Bird flu, or H5N1, has been ...

During the mating process, birds engage in what is known as a “cloacal kiss.” this. In birds, the cloaca is a single opening located at the base of the tail that serves multiple functions. The owl’s ...

The bald eagle has been a symbol of the United States since its founding almost 250 years ago. It appears on the Great Seal of the United States, the U.S. president's flag, the mace of the House of ...

The bald eagle has landed in the U.S. code after President Joe Biden signed a bill Tuesday making the predator the official national bird. Congress passed the measure with unanimous support. Although ...