Mental Floss

BIOLOGY

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The pelvis is not actually a single body part, but a term that refers to a collection of bones, muscles and organs below the waist.

Jordan Rosenfeld










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Alfred Kinsey forever changed the way we think, and talk, about sex—partly by asking more than 18,000 men and women deeply personal questions about their most intimate habits.

Michele Debczak




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At its largest point, the sciatic nerve is about as big around as a man's thumb—plenty big enough to be an important part of the nervous system.

Jordan Rosenfeld


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Did you know opposable thumbs may have played a role in the development of language?

Jordan Rosenfeld