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How Seed Banks Work
science.howstuffworks.com/environmental/green-science/seed-bank.htm
Seed banks store our world's seeds, in case disaster wipes out a plant species. Find out how seed banks protect our future.
Is there such a thing as a truly unselfish act?
science.howstuffworks.com/life/evolution/unselfish-act.htm
An unselfish act is an act in which one person benefits while the person performing the act gains nothing. Find out if an unselfish act is possible.
5 Rare Neurological Conditions
health.howstuffworks.com/mental-health/neurological-conditions/5-rare-neurological-conditions.htm
Neurological conditions include Parkinson's disease, muscular dystrophy and cerebral palsy. But do you know the rare neurological conditions? Find out here.
What causes skin moisture loss?
health.howstuffworks.com/skin-care/moisturizing/basics/skin-moisture-loss.htm
What causes skin moisture loss? There can be several reasons that skin loses moisture. Find out what causes skin moisture loss at HowStuffWorks.
How Prenatal Testing Works
health.howstuffworks.com/pregnancy-and-parenting/pregnancy/issues/prenatal-testing.htm
During a pregnancy, different kinds of prenatal testing are an important part of the process. See how prenatal testing protects both the mother and child.
Do animals have personalities?
animals.howstuffworks.com/animal-facts/do-animals-have-personalities.htm
Do animals have personalities? Pet owners would answer with a resounding yes. Find out how scientists would answer, "Do animals have personalities?"
Why Do Humans Have Body Hair?
health.howstuffworks.com/human-body/parts/human-body-hair.htm
Human body hair may seem annoying to groom, pluck and shave, but it does serve a purpose. Learn about human body hair and why we have hair on our bodies.
How Ultrasound Works
science.howstuffworks.com/ultrasound.htm
Ultrasound lets us peek into the human body to see everything from heart valves to a moving baby. But how do sound waves give us a picture?
What is trichodynia?
health.howstuffworks.com/skin-care/scalp-care/problems/trichodynia.htm
What is trichodynia? Symptoms include discomfort or pain in the scalpe or hair. Read about trichodynia at HowStuffWorks.
Diagnosing Placenta Previa
health.howstuffworks.com/pregnancy-and-parenting/pregnancy/complications/10004-placenta-previa.htm
Placenta previa occurs when the placenta is low in the uterine cavity, covering the opening of the cervix. It can interfere with a normal delivery.