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Your search for "working animal" returned 4,171 results
Where do butterflies get their striking colors?
animals.howstuffworks.com/insects/butterfly-colors.htm
Butterfly color is some of the most striking in nature. Learn how butterfly wings use ordinary color and structural color.
What causes 'old person' smell?
health.howstuffworks.com/mental-health/human-nature/perception/old-person-smell.htm
We may not know how to describe it very well, but we all recognize 'old person' smell. Learn what causes 'old person' smell at HowStuffWorks.
10 Weird Facts About Lobsters
animals.howstuffworks.com/marine-life/10-weird-facts-lobsters.htm
Lobsters pee out of their faces. Find out 10 weird facts about lobsters at HowStuffWorks.
How do armadillos roll into a ball?
animals.howstuffworks.com/mammals/armadillo-ball.htm
An armadillo ball is what it sounds like: an armadillo rolled up in a ball. Read why an armadillo ball is more than a shape -- it's a defensive tactic.
10 Traits That Make Insects Survivors
animals.howstuffworks.com/insects/10-traits-that-make-insects-survivors.htm
If people had exoskeletons and wings maybe they'd be around forever, too. HowStuffWorks looks at 10 traits that make insects survivors.
Cape Buffalo Are Intensely Protective Herbivores
animals.howstuffworks.com/mammals/cape-buffalo.htm
Today, we're exploring one of Africa's most formidable and awe-inspiring animals: the Cape buffalo. This powerhouse bovine isn't just a member of the prestigious "Big Five" — it's also one of the most dangerous animals on the continent.
What happens to chimps used in medical research?
animals.howstuffworks.com/mammals/chimpanzee-research.htm
Chimpanzee research dates back to the 1920s with Robert Yerkes. Learn what happens in chimpanzee research and why some countries ban the practice.
Scientists Figure Out Why Elephants' Skin Is So Cracked
animals.howstuffworks.com/mammals/scientists-figure-out-why-elephants-skin-so-cracked.htm
HowStuffWorks looks at new study explaining why elephants' skin is so cracked and wrinkled. It's not just that they need some lotion!
Fisher Cats: Tough Guys of the Weasel World
animals.howstuffworks.com/mammals/fisher-cats.htm
HowStuffWorks looks at the world of the mysterious fisher cat, which actually isn't a cat at all but rather a tough member of the weasel family.
How much can a goldfish remember?
animals.howstuffworks.com/pets/how-much-can-a-goldfish-remember.htm
Goldfish are not known for having particularly strong memories, but maybe they should be. Learn all about what goldfish can remember at HowStuffWorks.