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Why Are Cats So Obsessed With Laser Pointers?
animals.howstuffworks.com/pets/cats-laser-pointers.htm
What makes cats hunt a laser pointer? Learn more about cats and laser pointers in this HowStuffWorks Now article.
The Science Behind Why We All Have Snot
health.howstuffworks.com/human-body/systems/respiratory/mucus.htm
Believe it or snot, almost every living creature has some kind of mucus - because mucus does so many things. A study found mucus was so beneficial to mammals, it evolved independently in species.
Why would circumcision decrease a man's risk of contracting AIDS?
science.howstuffworks.com/environmental/life/cellular-microscopic/circum-aids.htm
The results of three recent studies show that an uncircumcised man is twice as likely to contract AIDS from an infected woman as is a circumcised one.
Why do we need warriors?
people.howstuffworks.com/need-warriors.htm
Warriors have evolved over the years as new technologies have been developed. Learn about warriors in this article.
Why Don't Manx Cats Have Tails?
animals.howstuffworks.com/pets/manx-cat.htm
The most obvious feature of Manx cats is their lack of a tail, but there is a lot more to them than that, including the fact that they have dog-like personalities and make great pets.
Why Are Some Comets Green?
science.howstuffworks.com/green-comet.htm
News headlines talk about a rare green comet appearing in the sky. The comet itself is rare, but green comets, not so much. What makes some comets appear green?
How and why does the heart pump blood to itself?
health.howstuffworks.com/human-body/systems/circulatory/heart-pump-blood.htm
Have you ever stopped to wonder how does the heart pump blood to itself and the rest of your body? Learn the answer to how does the heart pump blood.
Why Are There Dozens of Dead Animals Floating in Space?
science.howstuffworks.com/dead-animals-in-space.htm
Neil Armstrong may have been the first man on the moon, but he wouldn't have gotten there without fruit flies, rhesus monkeys or a dog.
Why Is Biodiversity Important for Ecosystems?
science.howstuffworks.com/environmental/conservation/issues/biodiversity-important.htm
Biodiversity means rainforests and reefs teeming with species right? There's more to it than that though. Genetic diversity has a big role to play, too. Just ask that cheetah cub.
Why You Should Get Fired Up About Dragon Fruit
recipes.howstuffworks.com/dragon-fruit.htm
This pretty pink fruit is part of the flower of a climbing cactus. The plant likely originated in Central America but you can find the fruit almost anywhere today.