How Did the Armadillo Get Its Name?
How Did the Armadillo Get Its Name? The early Spanish explorers gave the armadillo its name when they first discovered these animals in Mexico in the sixteenth century....
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How Do We Know When We Are Hungry?
How Do We Know When We Are Hungry? Hunger begins when substances like glucose (sugar), minerals, vitamins, and amino acids are missing from the blood. Nerves in the...
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Why Do Dogs Pant?
Why Do Dogs Pant? Dogs pant to cool off when they are feeling hot. When our body temperature gets too high, we sweat. Evaporation of sweat from the skin takes up a lot...
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Why Do We Have Hair?
The main purpose of hair is to protect the body. Hair keeps the top of the head warm in winter, and shields it from bumps and bruises. The hair in our nose and ears...
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Why Do Hermit Crabs Live in Discarded Shells?
Why Do Hermit Crabs Live in Discarded Shells? Unlike other crabs, the hermit crab has no hard outer shell to protect its soft body. So it “borrows” the shells of other...
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