Animals | Animal Facts

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

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Top 10 Tree-Dwelling Animals

These animals aren't treehuggers in the environmental activist sense. They have to hold on for dear life! Meet the top 10 tree-dwelling animals.


10 Weird Ways Organisms Reproduce

10 Weird Ways Organisms Reproduce

Nature has come up with many ways to increase populations. Learn more about the weird ways organisms reproduce at HowStuffWorks. See more »

Did a Russian lake flash-freeze a herd of horses?

Did a Russian lake flash-freeze a herd of horses?

Horses are powerful and strong, but are they any match for the freezing cold? Learn if a lake can flash-freeze a herd of horses at HowStuffWorks. See more »

Do animals laugh?

Do animals laugh?

Do animals laugh? Researchers have investigated whether animals are capable of making a unique sound in response to joy. See more »

What's the largest land animal of all time?

What's the largest land animal of all time?

Just how big do animals come? Find out as we dive backward through history to unearth the largest land animal of all time. See more »

How Animal Imprinting Works

How Animal Imprinting Works

Animal imprinting concerns how some species of animals learn during a short period immediately after birth. Learn more about animal imprinting. See more »

10 Insects We Love to Study

10 Insects We Love to Study

Insects have an awful lot to teach us about the world. View 10 insects we love to study to learn more. See more »

10 Recent Breakthroughs in Marine Biology

10 Recent Breakthroughs in Marine Biology

Marine biology breakthroughs have helped us learn about the ocean's residents. Explore 10 of the coolest marine biology discoveries. See more »

Is hippo milk really pink?

Is hippo milk really pink?

It would be pretty awesome if hippo moms produced strawberry colored milk, but it's just a myth. Learn why hippo milk isn't pink at HowStuffWorks. See more »

Do rabbits really go crazy in March?

Do rabbits really go crazy in March?

Rabbits can be fluffy bundles of laziness or superbly rambunctious. Learn if rabbits really go crazy in March at HowStuffWorks. See more »

Has a whale ever swallowed someone alive?

Has a whale ever swallowed someone alive?

Most whales are very different from the ones depicted in fiction. Learn if a whale has ever swallowed someone alive at HowStuffWorks. See more »