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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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Top 5 Sustainable Fishing Practices

Do you love to fish but love the environment too? Check out these five tips for sustainable fishing!


9 Times Interspecies Friendship Worked Out OK

Do interspecies interactions always end with one side a meal for the other? Happily: Nope! Learn more in this HowStuffWorks Now article. See more »

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?

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? 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?

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

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

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

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?

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?

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