Animals

Fish swam for their lives when they encountered a forbidding, ancient "monster" penguin that would have towered over today's largest penguin.

A team of biologists from the United Kingdom thinks that they've decoded the mystery of all the gray squirrels running around the United States with black fur.

In the past, the Carolinas were the sharks' destination of choice. But not anymore, thanks to Climate Change.

A set of four new stamps created by the U.S. Postal Service highlight the fearsome and much-loved king of the Cretaceous — Tyrannosaurus rex.

The world's largest frogs may also have the best pollywog daycare on the market.

Scientists recently discovered there's a simple solution for deterring thieving seagulls: Stare at them.

It was the largest parrot that ever lived, and is the only known giant parrot in the world.

As any lobster connoisseur knows, this crustacean turns bright red when it's heated. Why does this dramatic color transformation happen?

The playful creature is an example of a broader return of wildlife to crowded New York City.

Talk about feeling down-in-the-mouth.

About a half-billion years ago, a predator that looked just like the Millennium Falcon terrorized tiny prey.

A long time ago, in a galaxy not at all far away, a carnivore with an uncanny resemblance to the Millennium Falcon from "Star Wars" scuttled through the seas.

Unlike its more patient tick cousins, this supersize parasite pursues its prey.

Swarms of grasshoppers resembled fabled plagues of biblical proportions.

Sharks elicit outsized fear, even though the risk of a shark bite is infinitesimally small. Here's why.

Heavy rainfall in December buried plants under a heavy layer of ice.

Going to the zoo can be a great adventure, especially if you find poop hurtling in your direction.

Iron scales may not be enough to protect the scaly-foot snail from extinction.

The key to success is to focus on providing the cat with as much choice and control during interactions as possible.