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Animal Facts
Learn about some of the strange and unusual facts and terms in the animal kingdom.
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South Florida Is Overrun With Green Iguanas
The green iguana isn't native to the Sunshine State. So how did this invasive lizard get there and become the state's menace to society?
Why Some Animals Eat Rocks to Aid in Digestion
Gastroliths, or "stomach stones," are found in animals from chickens to sea lions. But what are they for?
Is That Animal Sanctuary You Want to Visit Legit?
A true animal sanctuary should provided excellent and humane care to animals for the rest of their lives. However, many operate under that guise and instead exploit the animals for profit. So how do you know if one is legit?
Move Over Groundhog, Woolly Caterpillars Forecast Winter Too!
In some parts of the U.S., the woolly bear caterpillar's color bands tell how bad a winter will be – lots of black means a harsh winter. So, is there any merit to this folklore?
3-D Printing Is Revolutionizing Veterinary Medicine
3-D printing is helping animals — both wild and domestic — recover from injuries that might once have meant euthanasia.
This Chicken Is So Goth It Makes Darth Vader Jealous
The magic of the blacker-than-black Ayam Cemani is in its genetics.
5 Reasons Geckos Are the Coolest Lizards
Geckos have abilities that definitely take lizardhood up a notch.
How Chameleons Change Color and Why They Do It
Chameleons change color whenever they feel agitated, exhilarated, threatened or excited. OK, but how?
On Patrol With the Beagle Brigade
There's a four-legged security officer patrolling your airport and this canine is on a mission to find illegal fruits and veggies.
Do Rabbits Really Go Crazy in March?
Rabbits can be fluffy bundles of laziness or superbly rambunctious, but do they really go crazy in March?
Can Snakes Really Come Up a Toilet Pipe?
Don't let this fear keep you from using the porcelain throne! Snakes in toilets are extremely rare occurrences.
What Animal Can Hold Its Breath Longest?
Many marine and aquatic mammals can survive without breathing by slowing their heart rates and redirecting blood from their extremities to their brains, hearts and muscles.
Yes, Animals Can Be Half Male and Half Female
Called gynandromorphs, half male and half female animals are rare, but they do exist.
Budweiser's Clydesdales: How These 'Gentle Giants' Came to Symbolize a Brand
The iconic horses step tall to promote wind power, which creates 100 percent of the electricity used to make Budweiser beer.
How Do Animals Survive Major Storms?
Miraculously, many animals are able to ride out some of Mother Nature's most powerful storms. But how?
5 Animals Whose Blood Isn’t Red
Not all animals have red blood flowing through their veins. Meet some our blue-blooded, green-blooded and, yes, transparent-blooded fellow creatures.
DOGTV: The HBO for Fido?
Many of us admittedly keep our televisions on when we leave the house — for our dogs. But does Fido really watch the TV?
White, Brown, Green Chicken Eggs: What's the Difference?
Check your chicken's earlobes (yes!) to know what color eggs you'll get.
Eco Engineers: 5 Animals That Can Reshape Earth's Waterways
Animals leave their marks on the ecosystem in ways you probably never imagined.
Scientists Shed Light on the Amazing Shrinking Shrew Skull
The common shrew takes some pretty drastic measures to survive winter.
Connecticut Becomes First State to Appoint Legal Advocates for Abused Animals
Connecticut new "Desmond's Law" is the first in the nation that appoints legal advocates in animal abuse cases.
Skeletons and Mummies Litter the Shores of Antarctica
Mummified seals. Skeletal penguins. Massive whale bones. Antarctica is a weird and wonderful place.
Poop Duration for Mammals Averages About 12 Seconds, New Study Finds
What do mammals have in common? We're warm-blooded. We feed their young with milk. And we all take the same amount of time to defecate.
Do Animals Have Different Blood Types Too?
Do non-human animals have equivalent categories to our A, B and O blood designations? Can animals donate blood?
How the Beagle Brigade Works
The Beagle Brigade is an important part of U.S. Customs and Border Protection. The dogs are trained to sniff out fruits, foods and plants in international passengers' luggage as they arrive in the airport terminals.
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