What Causes Black and Blue Marks?
What Causes Black and Blue Marks? If you fall or receive a sharp blow, you may get a painful bump that soon turns black and blue. When you bruise yourself, tiny blood...
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How Do Clams Eat?
How Do Clams Eat? Most clams burrow in sandy or muddy bottoms in shallow water. The clam gets its food from the water in an unusual way. At one end of its body is a...
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Why Do Fish Have Scales?
Why Do Fish Have Scales? Most fish are covered with a layer of flat scales, which overlap each other like the shingles on a roof. The hard scales form a protective...
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How Do Snails Move?
How Do Snails Move? A snail moves around by creeping on a part of its body that seems to be its stomach. The fact is that the whole bottom part of a snail’s body...
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Why Can’t a Bee Sting More than Once?
Why Can’t a Bee Sting More than Once? Most bees depend on their stingers, or stings, as their only means of self-defense. A bee’s stinger is located at the tail...
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