Monarch butterflies live in North, Central, and South America as well as Australia, some Pacific Islands, India, and Western Europe. Their markings include bright orange wings covered with black veins ...

Wherever there is dung (also known as poop), there are most likely dung beetles. They belong to three basic groups: rollers, tunnelers, and dwellers. Those words describe how these beetles use the ...

Boa constrictors are powerful snakes and stealthy hunters. They live in tropical climates throughout most of Central and South America, where they hunt at night.

The great horned owl has no horns! It is named for the tufts of feathers that sit on top of its head, called plumicorns. Scientists don’t know why these owls sport tufts of feathers on top of their ...

One species, called woolly mammoths, roamed the cold tundra of Europe, Asia, and North America from about 300,000 years ago up until about 10,000 years ago. (But the last known group of woolly ...

Sand tiger sharks are also known as sand tigers and gray nurse sharks. Like all sharks, they breathe underwater, through their gills. But sand tigers have one unique habit. They are the only sharks ...

A whale shark the size of a school bus swims slowly near the surface of the ocean. Its wide mouth is open, like an enormous net scooping up whatever happens to be around—mostly small fish, fish eggs, ...

Canada geese usually graze together in fields, eating grasses, sedges, grains, and berries. Their bills have serrated edges, ...

High in dense bamboo forests in the misty, rainy mountains of southwestern China lives one of the world's rarest mammals: the ...

A bald eagle's white head may make it look bald. But actually the name comes from an old English word, "balde," meaning white ...

Indian peafowl are a species in a group of birds called pheasants. The males are called peacocks, while the females are ...

Emperor penguins spend their entire lives on Antarctic ice and in its waters. They survive—breeding, raising young, and eating—by relying on a number of clever adaptations. These flightless birds ...