Why Does Skin Color Vary?
Why Does Skin Color Vary? People vary in the color of their skin because of a network of pigment-forming cells called melancoytes. This network is interspersed between,...
Read MoreWhy Does Skin Color Vary? People vary in the color of their skin because of a network of pigment-forming cells called melancoytes. This network is interspersed between,...
Read MoreWhy Does My Hair Turn Light in the Sun? Hair color comes from a pigment, melanin that is added to your hair as it is made in the skin of your scalp. Melanin helps...
Read MoreWhy Do We Get Sunburned? Sunburn is the result of over-exposure to sunlight, which causes heat and light damage to the skin. Ultraviolet rays from the sun penetrate the...
Read MoreHippos really are hungry, but not as hungry as you might expect. They only eat about 1% of their total body weight each day. Other animals, such as cows, can eat up to...
Read MorePigs wallow in the mud because it feels good to them. Rolling around in the mud protects them from overheating. Pigs have no sweat glands in their thick skin to serve...
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