Animal Facts

Learn about some of the strange and unusual facts and terms in the animal kingdom.

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Search-and-rescue dogs are called upon to work after natural disasters, mass casualty events and other incidents to locate missing people. So how do they do their work?

By Julia Layton & Sarah Gleim

What is the biggest animal ever to exist on Earth? The largest animal that is currently living on the planet is the blue whale, but was it the largest animal to have ever existed in history? Find out the answer in this article.

What do tropical lizards and polar bears have in common? Camouflage - the ability to adapt their appearance to their environment. Learn how camouflage works, how it helps animals survive and what different types of camouflage look like.

By Tom Harris


Fish have the ability to move in any direction in the water. In fact, they have the ability to rise and sink while swimming through the water. What allows a fish to rise and sink? Find out the answer to this question in this article.

Mad cow disease is in the news again, with tests confirming the second case in the United States since December 2003. Learn how this brain disease affects livestock and people.

By Craig Freudenrich, Ph.D.

Surprisingly, the gentle, loafing moose could be more threatening than a grizzly bear. Find out what you should do if that looming moose barrels at you like a bull.

By Cristen Conger & Kathryn Whitbourne