How Did the Bloodhound Get Its Name?
How Did the Bloodhound Get Its Name? Despite the bloodhound’s name, it is not vicious and has no special fondness for blood. This big saggy-skinned dog is...
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Do Hippos Sweat Blood?
Sometimes the hippo’s thick hide becomes covered with pinkish dew. He looks to be sweating blood, but actually, this is not so at all. The big fellow spends about half...
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Why Is Blood Red?
Why Is Blood Red? Blood gets its red color from a substance called “hemoglobin.” Hemoglobin has a molecule called a “heme” which has the metal...
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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 Does a Scab Form?
How Does a Scab Form? If you accidentally cut your finger, blood flows into the wound from tiny blood vessels in your skin. But your finger doesn’t bleed for...
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