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Your search for "environment" returned 3,799 results
Are married couples genetically similar?
people.howstuffworks.com/culture-traditions/genealogy/are-married-couples-genetically-similar.htm
Do birds of a feather flock together? When it comes to marriage they often do. Check it out just how similar are spouses at HowStuffWorks.
How many bug species exist?
animals.howstuffworks.com/insects/how-many-bug-species-exist.htm
Wondering how many bug species are out there? Learn the difference between bugs and insects and find out many bug species exist.
Summer Exercise Safety
health.howstuffworks.com/wellness/diet-fitness/information/summer-exercise-safety.htm
Practicing summer exercise safety will keep you injury-free during the warm months. Learn about summer exercise safety at Discovery Health.
Why are some people more ticklish than others?
health.howstuffworks.com/human-body/parts/why-are-some-people-more-ticklish-than-others.htm
Find out why some people are more ticklish than others at HowStuffWorks.
Where does earwax come from?
health.howstuffworks.com/human-body/systems/ear/where-does-earwax-come-from.htm
Earwax might seem like just another gross bodily substance, but it serves a very important function. Learn where earwax comes from at HowStuffWorks.
Trovants Are Stones That Seem to Grow, Move and Reproduce
science.howstuffworks.com/environmental/earth/geology/trovants.htm
Trovants, found only in a small town in Romania, are stones that actually seem to move and grow. But are they alive?
What Exactly Is the Eye of the Sahara, aka the Richat Structure?
science.howstuffworks.com/environmental/earth/geology/eye-of-the-sahara.htm
In the western Sahara Desert lies a natural wonder that has intrigued scientists and adventurers for centuries. Known as the Richat Structure - or, more commonly, the Eye of the Sahara - this massive geological formation resembles a giant eye.
How Long Do Squirrels Live?
animals.howstuffworks.com/mammals/how-long-do-squirrels-live.htm
There are tons of squirrel species around the world. Do they all have the same life span?
How Often Should You Replace Your Toothbrush?
health.howstuffworks.com/wellness/oral-care/products/replace-toothbrush.htm
When was the last time you replaced your toothbrush? And how often should you?
Will Earth Last Forever?
science.howstuffworks.com/will-earth-last-forever.htm
Nothing lasts forever. Does that include our home planet, too?