« previous next »
« previous next »
 

Did you know?

The longest a person has survived after a heart transplant is 24 years.

Did you know?

Oliver Wendell Holmes is credited with introducing the words "anesthesia" and "anesthetic" into the English language in 1846.

Did you know?

In 1886, William Bates reported on the discovery of a substance produced by the adrenal gland that turned out to be epinephrine (adrenaline). In 1904, this drug was first artificially synthesized by Friedrich Stolz.

Did you know?

Pope Sylvester II tried to introduce Arabic numbers into Europe between the years 999 and 1003, but their use did not catch on for a few more centuries, and Roman numerals continued to be the primary number system.

Did you know?

Approximately 70% of expectant mothers report experiencing some symptoms of morning sickness during the first trimester of pregnancy.

The greater honeyguide, Indicator indicator. The greater honeyguide, Indicator indicator.
Greater Swiss Mountain Dog Greater Swiss Mountain Dog
Greater sage grouse Greater sage grouse
The world attempted to deal with Somalia as if it were a real country but painfully learned that Som The world attempted to deal with Somalia as if it were a real country but painfully learned that Som
A noose hanging from a “Liberty Tree” reveals this artist’s bias: The “tar-and-feathering” of a Brit A noose hanging from a “Liberty Tree” reveals this artist’s bias: The “tar-and-feathering” of a Brit
Renewable Energy Efforts Renewable Energy Efforts
Video: Cytotoxic T cell receptors, activation, proliferation, differentiation & action

For a complete list of videos, visit our video library