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Why do we sleep?
health.howstuffworks.com/mental-health/sleep/basics/why-do-we-sleep.htm
Why do we sleep? Researchers have had a hard time trying to answer this question, but have a few ideas. Take a look at theories and learn why we sleep.
Do animals laugh?
animals.howstuffworks.com/animal-facts/do-animals-laugh.htm
Do animals laugh? Researchers have investigated whether animals are capable of making a unique sound in response to joy.
Could You Really Outrun a Tyrannosaurus Rex?
animals.howstuffworks.com/dinosaurs/outrun-tyrannosaurus-rex.htm
OK, hop in your time machine, find a T. rex and challenge it to a race. Who'd win? Find out if you could outrun a Tyrannosaurus rex at HowStuffWorks.
How Old Is Earth and How Did Scientists Figure It Out?
science.howstuffworks.com/how-old-is-earth.htm
In 1953, CalTech geochemist Clair Patterson came up with an estimate for Earth's age that still holds today.
Are Polar Bears Endangered?
science.howstuffworks.com/environmental/green-science/polar-bear-global-warming.htm
Polar bears and global warming are getting attention from conservationists and the general public. See why polar bears are threatened by global warming.
Is there a gender gap in the workplace?
money.howstuffworks.com/gender-gap.htm
The gender gap in the workplace can result in wage discrimination. Learn why a gender gap exists even today in the 21st century and how it affects women.
Empty Nest Syndrome Overview
health.howstuffworks.com/wellness/aging/empty-nest/empty-nest-syndrome.htm
Empty nest syndrome describes the depression that can result for a parent whose children are all out of the house. But is empty nest syndrome a myth?
How Lab-grown Skin Works
science.howstuffworks.com/innovation/everyday-innovations/lab-grown-skin.htm
Lab-grown skin can improve the survival odds of someone with a serious third-degree burn. See how lab-grown skin is made and how it works.
Do jellyfish have the deadliest venom in the world?
animals.howstuffworks.com/marine-life/jellyfish-venom.htm
Jellyfish venom is one of the deadliest toxins on Earth. Learn how humans and other animals trigger jellyfish venom and what the cure is.
How Dental School Admissions Work
money.howstuffworks.com/personal-finance/college-planning/admissions/dental-school-admissions.htm
Dental school admissions is a fairly streamlined process in the United States. Learn about the steps involved in dental school admissions.