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How Nurse Sharks Work
animals.howstuffworks.com/fish/sharks/nurse-shark.htm
Nurse sharks are mellow, sluggish sharks that hover above the ocean floor. See why nurse sharks don't have that much in common with great whites.
Understanding Pregnancy Symptoms
Pregnancy symptoms include changes to your reproductive and digestive system, your blood and metabolism. Read about understanding pregnancy symptoms.
How Motion Sickness Works
health.howstuffworks.com/mental-health/neurological-conditions/motion-sickness.htm
Although motion sickness is very common, scientists don't really know why we get it. Learn all about this condition at HowStuffWorks.
5 Signs You Should See the Doctor for Your Heartburn
health.howstuffworks.com/diseases-conditions/digestive/5-signs-to-see-doctor-for-heartburn.htm
Do you need to see a doctor for heartburn? Take a look at this of the top five signs that you should see a doctor for heartburn.
How Alligators Work
animals.howstuffworks.com/reptiles/alligator.htm
Alligators are amazing animals that have been around for millions of years. Learn about alligators and find out what makes alligators the perfect predator.
5 Most Dangerous Contests
health.howstuffworks.com/diseases-conditions/death-dying/5-most-dangerous-contests.htm
Dangerous contests -- some run from them, some embrace the risk. Take a look at these five most dangerous contests that are not for the weak-hearted.
Which of These Animals Does Not Belong With the Others?
play.howstuffworks.com/quiz/which-of-these-animals-does-not-belong-with-the-others
Millions of animals exist in the world. Reptiles, mammals, fish and insects all coexist with us. How are they alike? How are they different? Take our quiz, and see if you know the answers!
Is This the Name of a Real or Fake Organ?
play.howstuffworks.com/quiz/is-this-the-name-of-a-real-or-fake-organ
It is commonly accepted that there are 78 organs in the human body. Can you tell the difference between a real organ and a made-up one? Take this quiz to prove your organ knowledge!
10 Starfish Species You've Probably Never Seen Before
animals.howstuffworks.com/marine-life/starfish.htm
What lives in water, has no gills, scales or fins and is not a fish? Yep, a starfish - which is why marine biologists have renamed these creatures sea stars.
Can You Pass a Basic Paramedic Exam?
play.howstuffworks.com/quiz/can-you-pass-a-basic-paramedic-exam
A paramedic is on the front line of the action when it comes to saving lives! First responders have studied long and hard to be in this incredibly demanding position. Do you have what it takes to pass a basic paramedic exam?