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Do the Planets Ever Actually Align?
science.howstuffworks.com/planetary-alignment.htm
If you imagine the eight major planets in a single line stretching out from the sun, this alignment occurs roughly every 13.4 trillion years. And our solar system is 4.5 billion years old.
Can you get pregnant after having gonorrhea?
Can you get pregnant after having gonorrhea? Learn if you can get pregnant after having gonorrhea in this article.
Are there CO2 emissions from natural gas?
science.howstuffworks.com/environmental/energy/emissions-natural-gas.htm
Until recently, natural gas was thought of as one of the cleanest fossil fuels. Yet new studies say it may be worse for the ozone layer than coal -- a fuel well-known for its harmful emissions.
Is natural gas a good source of energy?
science.howstuffworks.com/environmental/energy/natural-gas-energy.htm
When people talk about energy and natural gas, opinions differ. Is it harmful to the environment, or the last great clean energy source?
Can You Recycle Teflon Cookware?
home.howstuffworks.com/green-living/recycle-teflon-cookware.htm
Teflon has been linked to infertility in women. Learn more about recycling teflon cookware.
Why do babies grind their teeth?
health.howstuffworks.com/wellness/oral-care/kids/why-do-babies-grind-teeth.htm
Babies sometimes grind their teeth, but why? Find out why babies grind teeth and the dangers of teeth grinding.
Why Do Sheepshead Fish Have 'Human' Teeth?
animals.howstuffworks.com/fish/sheepshead-fish.htm
The sheepshead fish is a curiosity to anglers and marine biologists alike. This unique species, found along the Atlantic coast of North America, has long received attention for its strange dental structure, resembling that of humans.
Are Snakes With Legs a Real Thing?
animals.howstuffworks.com/extinct-animals/snakes-with-legs.htm
Have you ever wondered if snakes used to have legs? Believe it or not, snakes didn’t always slither on the ground like they do today. In fact, once upon a time, snakes with legs really did roam Earth, and scientists have found some pretty incredible clues to prove it.
Coral Snake vs. King Snake Identification and Traits
animals.howstuffworks.com/reptiles/coral-snake-vs-king-snake.htm
At first glance, the coral snake vs. king snake distinction can seem borderline impossible. But these two reptiles are worlds apart in terms of how they live, hunt and defend themselves.
How can soft tissue exist in dinosaur fossils?
science.howstuffworks.com/environmental/earth/geology/soft-tissue-dinosaur.htm
Soft tissue in dinosaur fossils is very rare, and when it does turn up it often contains many surprises. Learn about soft tissue in dinosaur fossils.