They prefer to feast on large animals, wild or domestic, and in picking the carcasses, they perform an important function as a natural clean-up crew. Along the coasts, condors will feed on dead ...

This very common, conspicuous mimid of the southern United States is known for its loud, mimicking song, often heard during spring and summer nights in suburban neighborhoods. Both sexes ...

In winter, bighorn herds move to lower-elevation mountain pastures. In all seasons, these animals eat available grass, seeds, and plants. They regurgitate their food to chew it as cud before ...

Most are distinguished by striking colors and bright plumage of yellow, blue, scarlet, and green. These colors distinguish them as some of the world's most dramatic and attractive birds. Males ...

The difference in lip shape is related to the animals' diets. Black rhinos are browsers that get most of their sustenance from eating trees and bushes. They use their lips to pluck leaves and ...

Pumping water through their bells, these jellyfish use a type of jet propulsion to follow the sunlight until they nearly reach the eastern shore—stopping just short of the shadows caused by ...

Anyone unfamiliar with the biology of the venomous Portuguese man-of-war would likely mistake it for a jellyfish. Not only is it not a jellyfish, it's not even an "it," but a "they." The ...

National Geographic Expedition has four new wildlife expeditions that allow you to get up close and personal with amazing ...

Worker animals dig the burrows that the whole clan inhabits, using their prominent teeth and snouts. They also gather the roots and bulbs for the colony to eat. Other rats tend to the queen.

The animals are ace jumpers, using powerful legs and extremely long tails to spring great distances. This allows the primates to move quickly through the forest canopy or snatch flying insects out ...