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How can studies on rats apply to humans?
science.howstuffworks.com/innovation/scientific-experiments/studies-rats-apply-humans.htm
Rats! They're just like family. Evolutionarily, anyway. So when it comes to research and biomedical study, what can they do for us?
What makes humans human?
science.howstuffworks.com/life/genetic/humans-human.htm
What makes humans human? How are we different from the other great apes? Find out what makes humans human in this article from HowStuffWorks.
Yes, You Can be Allergic to Vibrations
science.howstuffworks.com/life/genetic/you-can-be-allergic-vibrations.htm
Scientists are discovering why some people break out into hives from physical contact like clapping hands or running.
What Are the Nitrogen Cycle Steps?
science.howstuffworks.com/life/biology-fields/nitrogen-cycle.htm
The nitrogen cycle is the system by which nitrogen is converted into different chemical forms, some usable to humans and animals and some not, as it circulates among the atmosphere, the land and the oceans.
Ancient Egyptians Believed Cats Had 'Divine Energy'
But that doesn't mean they worshipped them.
Are Dinosaurs Still Alive?
science.howstuffworks.com/science-vs-myth/everyday-myths/could-dinosaurs-still-be-alive.htm
Whether in "King Kong," "Journey to the Center of the Earth" or "The Lost World," humankind has long held out hope of discovering a secret land filled with prehistoric beasts. But is that even possible? Are dinosaurs still alive?
What's a polymer?
science.howstuffworks.com/polymer.htm
Polymers are the basic components in so many of the products we use each day. Learn how more about how polymers work.
How incomplete is the fossil record?
science.howstuffworks.com/environmental/earth/geology/incomplete-fossil-record.htm
The fossil record is far from being complete. Just how incomplete is the fossil record? Learn about the fossil record in this article.
What is the neurochemistry of happiness?
science.howstuffworks.com/life/neurochemistry-of-happiness.htm
There's a connection between our physical bodies and the way it responds to emotion -- but scientists aren't quite sure what it is. Could it be that happiness is little more than a series of neurochemical responses to the world around us?
Scientists Unlock Secrets of H-bomb Element Einsteinium
science.howstuffworks.com/einsteinium.htm
Scientists at the Lawrence Berkeley National Laboratory just made history with einsteinium. They held a sample of the short-lived element long enough to measure some of its chemical properties.