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Your search for "human" returned 7,213 results
Can a Turtle Outgrow Its Shell?
animals.howstuffworks.com/reptiles/turtle-shell.htm
Turtle shells help protect the reptiles from predators and allow some to move quickly through the water. Find out if a turtle can outgrow its shell.
Does smog make for beautiful sunsets?
science.howstuffworks.com/environmental/green-science/smog-sunset.htm
Many people think that beautiful, blazing sunsets are one upside to living with the smog that hangs over polluted cities. Are they right? Does smog actually enhance sunsets?
How to Play Poker Online
entertainment.howstuffworks.com/how-to-play-poker-online.htm
Online poker is a popular pastime these days, one that requires a specific strategy to be successful. Learn more about this strategy.
Do Babies Have Kneecaps?
health.howstuffworks.com/human-body/systems/musculoskeletal/babies-kneecaps.htm
Babies' kneecaps are said to be a myth. But without bony kneecaps, how do toddlers get around? Learn about babies' kneecaps and how baby bones grow.
Why are there so many great writers with epilepsy?
health.howstuffworks.com/mental-health/neurological-conditions/writers-with-epilepsy.htm
Great writers with epilepsy aren't uncommon, from Lewis Carroll to Charles Dickens. How did books like Alice in Wonderland come from writers with epilepsy?
How Horse Trailer Towing Works
auto.howstuffworks.com/auto-parts/towing/vehicle-towing/trailer/horse-trailer-towing.htm
Horse trailer towing can be tricky. Learn more about horse trailer towing at HowStuffWorks.
How does ginger fight cancer?
health.howstuffworks.com/wellness/natural-medicine/alternative/ginger-fight-cancer.htm
How does ginger fight cancer? Learn all about ginger's effect on cancer at HowStuffWorks.
How Many Muscles Does It Take to Smile?
science.howstuffworks.com/life/inside-the-mind/emotions/muscles-smile.htm
The authors of chain emails often tell you to smile more, with the added claim that it takes more muscles to frown. Ever questioned this piece of wisdom? We have an answer for you.
How Can Light Kill Viruses?
science.howstuffworks.com/life/cellular-microscopic/light-virus.htm
Hand sanitizers can only get you so far in preventing a viral infection. Scientists are discovering how visible light can be used to destroy viruses. Learn about the laser technique and what it means for the future.
How Cicadas Work
animals.howstuffworks.com/insects/cicada.htm
Some cicadas are annual breeders and some show up about every 17 years. They all produce a 'song' that is almost loud enough to damage our ears.