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Why Do Men Have Nipples?
health.howstuffworks.com/human-body/parts/why-men-have-nipples.htm
Why do men have nipples? Did they ever serve a purpose? Find out why men have nipples at HowStuffWorks.
How Can You Tell if a Chicken Egg Is Fertilized?
recipes.howstuffworks.com/food-science/can-tell-if-chicken-egg-is-fertilized.htm
How can you tell if a chicken egg is fertilized or not? HowStuffWorks answers the age-old question.
How Menstruation Works
health.howstuffworks.com/wellness/women/general/menstruation.htm
Menstruation the female reproductive cycle that makes eggs available for fertilization. Learn about menstruation and menstrual cycles at HowStuffWorks.
How does the spine form?
health.howstuffworks.com/human-body/systems/musculoskeletal/spine-form.htm
Ever wonder how the spine forms? It has to develop in the right way to hold your body together. Learn how your spine forms at HowStuffWorks.
Understanding the Conception Process
health.howstuffworks.com/pregnancy-and-parenting/pregnancy/conception/conception-process.htm
Understanding the conception process can be helpful in getting pregnant. Visit HowStuffWorks to gain an understanding of the conception process.
Some Aphid Babies Are Born Already Pregnant
animals.howstuffworks.com/insects/aphid-babies-born-pregnant.htm
Born pregnant? You bet. It's a survival instinct but could also explain how these garden pests spread like wildfire.
How Atavisms Work
science.howstuffworks.com/life/evolution/atavism.htm
Atavisms are traits that are left over from a distant evolutionary ancestor. Learn more about atavisms and the controversy surrounding atavism.
Can we create a real Jurassic Park?
science.howstuffworks.com/life/genetic/real-jurassic-park.htm
Is a real Jurassic Park possible, or is the idea purely science fiction? Learn about creating a real jurassic park in this article from HowStuffWorks.
How Pregnancy Works
health.howstuffworks.com/pregnancy-and-parenting/pregnancy/conception/pregnancy.htm
Pregnancy revolves around the goal of turning a mass of cells into a baby. Explore each trimester of pregnancy and learn about pregnancy issues, from c-sections to amniocentesis.
Surrogacy Overview
health.howstuffworks.com/pregnancy-and-parenting/pregnancy/fertility/surrogacy.htm
Surrogacy involves a woman carrying a child for others who cannot conceive. Learn about the types of surrogacy in this article.