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Did you know?

Bacteria have been found alive in a lake buried one half mile under ice in Antarctica.

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Asthma cases in Americans are about 75% higher today than they were in 1980.

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There are more sensory neurons in the tongue than in any other part of the body.

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

Normal and sickle-cell hemoglobin. (a) Subtle differences between the conformations of hemoglobin A Normal and sickle-cell hemoglobin. (a) Subtle differences between the conformations of hemoglobin A
Sickle Cell Gel Electrophoresis Sickle Cell Gel Electrophoresis
Seven black members of Congress in 1871 are from left to right: Senator Hiram Revels (R-MS) and Repr Seven black members of Congress in 1871 are from left to right: Senator Hiram Revels (R-MS) and Repr
The “Big Four” world leaders meet at the Hotel Crillon in Paris, 1919. From left to right (front row The “Big Four” world leaders meet at the Hotel Crillon in Paris, 1919. From left to right (front row
This frame from a home video shows Eric Harris (on the left) and Dylan Klebold (on the right) as ... This frame from a home video shows Eric Harris (on the left) and Dylan Klebold (on the right) as ...
Life cycle of Obelia, a hydrazoan that has alternating medusa (left) and polyp generations Life cycle of Obelia, a hydrazoan that has alternating medusa (left) and polyp generations
Video: Complement Proteins Animation

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