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When is it a good idea to repeat kindergarten? Find out under what circumstances you should consider having your child repeat kindergarten.

Spontaneous sex reversal in chickens is pretty rare, but it does happen. Find out how Miss Lucille became Mr. Lucille.

Parasites are creepy to begin with. They live on or in a host, including humans. Some even lay eggs in our skin!

Sweet gum tree has maple-like leaves that turn yellow to red in the fall. Learn about growing, propagating and using sweet gum tree at HowStuffWorks.

Hardy water lily is a popular design centerpiece for many water gardens. Learn how to grow and use hardy water lily at HowStuffWorks.

Do the humps on camels hold water? Get the facts at HowStuffWorks

How does aging work? Take look at some of the common internal and external signs of aging and ways to reduce the aging of the skin at HowStuffWorks.

What are the dog 'zoomies'? Learn more about dogs' Frenetic Random Activity Periods in this HowStuffWorks Now article about dog zoomies.

Can exercise improve your sex life? Find out if exercise can improve your sex life at HowStuffWorks.

When lions gather in the wild, they form a unique and powerful social unit. So, what is a group of lions called? The correct term is a pride.

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