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Did you know?
Adult head lice are gray, about ? inch long, and often have a tiny dot on their backs. A female can lay between 50 and 150 eggs within the several weeks that she is alive. They feed on human blood.
Did you know?
There are more sensory neurons in the tongue than in any other part of the body.
Did you know?
Warfarin was developed as a consequence of the study of a strange bleeding disorder that suddenly occurred in cattle on the northern prairies of the United States in the early 1900s.
Did you know?
The horizontal fraction bar was introduced by the Arabs.
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Between 1999 and 2012, American adults with high total cholesterol decreased from 18.3% to 12.9%