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4 Facts About Phosphate, the Chemical Compound That's Everywhere
science.howstuffworks.com/phosphate.htm
You might wonder what phosphates do, but they are so intrinsic to our daily lives that the question really is: What don't phosphates do?
What is the origin of life on Earth?
science.howstuffworks.com/life/evolution/origin-of-life-on-earth.htm
What is the origin of life on Earth? Learn about theories of evolution and the origin of life on Earth at HowStuffWorks.
Are Dinosaurs Real? What We Know About the Extinct Creatures
science.howstuffworks.com/environmental/earth/geology/dinosaur.htm
Are dinosaurs real? Most people don't have to travel too far to answer that question in the affirmative with some kind of exhibit displaying dinosaur fossils. Or simply look at any bird you can see outside your home.
How Atavisms Work
science.howstuffworks.com/life/evolution/atavism.htm
Atavisms are traits that are left over from a distant evolutionary ancestor. Learn more about atavisms and the controversy surrounding atavism.
What Is the Atacama Skeleton, and Why Is It So Controversial?
science.howstuffworks.com/life/genetic/atacama-skeleton.htm
The Atacama skeleton has sparked intense controversy and, based on its appearance, speculation of alien origin since its discovery in 2003. But what is the real story behind this little skeleton?
How are genes turned off and on?
science.howstuffworks.com/life/genetic/genes-turned-off-on.htm
How are genes turned off and on throughout our life? Find out how genes are turned off and on in this article from HowStuffWorks.
Otzi the Iceman Ate a High-fat Last Meal
science.howstuffworks.com/life/biology-fields/otzi-iceman-ate-high-fat-last-meal.htm
Researchers say that Otzi, the ancient man found in the Alps in 1991, lived on a diet loaded with fat to maintain warmth and energy in his cold, high-altitude environment.
How Human Cloning Will Work
science.howstuffworks.com/life/genetic/human-cloning.htm
Human cloning has been an ethical issue ever since the first sheep was cloned in 1997. Learn about the science behind human cloning.
How X-rays Work
science.howstuffworks.com/x-ray.htm
X-ray machines seem to do the impossible: They see straight through clothing, flesh and even metal, thanks to some very cool scientific principles at work. Find out how X-ray machines see straight to your bones.
Neanderthal vs. Homo Sapien: Separate Species With Different Fates
science.howstuffworks.com/life/evolution/neanderthal-vs-homo-sapien.htm
Neanderthals (Homo neanderthalensis) and humans (Homo sapiens) are two distinct species within the genus Homo. Neanderthals lived in Eurasia until about 40,000 years ago, alongside ancient humans.