A bright red mass suddenly appears in a dog's eye. Is it painful? How did it develop? Here is all you need to know about cherry eye in dogs.

Ever seen a cat run in its sleep? Learn how feline sleep cycles and REM dreaming cause those funny paw flicks and twitching legs.

There's a large eight foot long Anteater coming to the Buffalo Zoo, and it's getting people excited about saving the species.

Learn why “spider season” and deadly Sydney funnel-web season are different, and how to stay safe when spiders are on the move.

With territories ranging from Arizona to New Hampshire, mountain lions are able to adapt to a variety of habitats. In this ...

Found in the eastern regions of the United States, copperheads are one of the most common venomous snakes in North America. With skin the color of autumn leaves, these stealthy snakes are often ...

Have you ever wondered if slugs can smile — or if they even have teeth? How a slug eats is surprisingly complex!

Two-headed snakes sound like a story out of mythology, but it rarely happens in nature. Read here to learn more about why this happens.

Long before modern bears were around, Earth was home to massive bear species. Like today’s bears, these animals roamed forests and tundra. However, these ancient animals towered over today’s largest ...

Scientists map how climate-driven extreme heat and human land use together push almost 8,000 vertebrate species toward extinction.

Cockroach milk may not be available today, but scientists are convinced it may be the key to ending world hunger.

Discover which species star in “The 12 Days of Christmas,” how they live, and whether they’d enjoy life as unusual holiday gifts.