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How do sharks see, smell and hear?
animals.howstuffworks.com/fish/sharks/shark-senses.htm
A shark sense isn't so different from any of our senses, a shark sense is just sharper underwater. See more about shark sense and how each works.
Lichen Planus Overview
health.howstuffworks.com/skin-care/scalp-care/problems/lichen-planus.htm
Lichen planus can be a bothersome condition. Visit HowStuffWorks to learn all about lichen planus.
Frog Crafts and Activities
lifestyle.howstuffworks.com/crafts/animal-crafts/frog-crafts.htm
Frog crafts are a ribbiting good time. Learn about five crafts and activities that will give kids a hop-start on some froggy fun.
Psoriasis Overview
health.howstuffworks.com/skin-care/problems/medical/psoriasis.htm
Psoriasis can be a painful skin problem. Learn more about how psoriasis works at HowStuffWorks.
Is Styrofoam Recyclable?
science.howstuffworks.com/environmental/green-science/polystyrene-recycling.htm
Polystyrene -- the plastic used in items ranging from plastic forks to take-out boxes to life rafts -- can be recycled, but not without costs. What does it take to recycle polystyrene?
How to Plan a Masquerade Ball
lifestyle.howstuffworks.com/event-planning/how-to-plan-masquerade-ball.htm
If you're looking to have a party with a unique spin, host a masquerade ball. Get tips and learn how to plan a masquerade ball.
The Basic Astronomy quiz
play.howstuffworks.com/quiz/the-basic-astronomy-quiz
The night sky has fascinated humans throughout history. Even if you're not a science buff in general, we're willing to bet you know a thing or two about astronomy yourself. Find out just how much with our quiz!
Gemstone Identification Quiz
play.howstuffworks.com/quiz/gemstone-identification-quiz
Gemstones can tell us so much about ourselves. But what will your knowledge of them say about you? Test it right here, with this quiz.
1959 Harley-Davidson Police Special
auto.howstuffworks.com/1959-harley-davidson-police-special.htm
The 1959 Harley-Davidson Police Special was equipped with a siren and a fire extinguisher. See pictures and learn about this Harley-Davidson bike.
How Stereolithography Works: A 3D Printing Process
computer.howstuffworks.com/stereolith.htm
Stereolithography -- also known as 3D printing -- is an amazing technology that allows you to build 3D plastic prototypes almost as easily as you print something on a sheet of paper!