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Did you know?

The average human gut is home to perhaps 500 to 1,000 different species of bacteria.

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It is difficult to obtain enough calcium without consuming milk or other dairy foods.

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The Romans did not use numerals to indicate fractions but instead used words to indicate parts of a whole.

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The FDA recognizes 118 routes of administration.

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Stroke kills people from all ethnic backgrounds, but the people at highest risk for fatal strokes are: black men, black women, Asian men, white men, and white women.

Wild chimpanzees make and use simple tools to obtain food, learning tool making from one another. Wild chimpanzees make and use simple tools to obtain food, learning tool making from one another.
Bioarchaeologists and forensic anthropologists use archaeological excavation techniques to recover r Bioarchaeologists and forensic anthropologists use archaeological excavation techniques to recover r
One of the reasons I went to Cambodia was to interview a feral child—the boy shown here—who ... One of the reasons I went to Cambodia was to interview a feral child—the boy shown here—who ...
Medical assistant shaking hands with the interviewer at the close of the interview. Medical assistant shaking hands with the interviewer at the close of the interview.
An example of a follow-up thank-you letter sent after an interview. An example of a follow-up thank-you letter sent after an interview.
A rat pressing a lever to obtain rewarding brain stimulation. A rat pressing a lever to obtain rewarding brain stimulation.
Video: Brief Summary on Photosynthesis - Animation

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