« previous next »
« previous next »
 

Did you know?

As many as 20% of Americans have been infected by the fungus known as Histoplasmosis. While most people are asymptomatic or only have slight symptoms, infection can progress to a rapid and potentially fatal superinfection.

Did you know?

The oldest recorded age was 122. Madame Jeanne Calment was born in France in 1875 and died in 1997. She was a vegetarian and loved olive oil, port wine, and chocolate.

Did you know?

According to research, pregnant women tend to eat more if carrying a baby boy. Male fetuses may secrete a chemical that stimulates their mothers to step up her energy intake.

Did you know?

A cataract is a clouding of the eyes' natural lens. As we age, some clouding of the lens may occur. The first sign of a cataract is usually blurry vision. Although glasses and other visual aids may at first help a person with cataracts, surgery may become inevitable. Cataract surgery is very successful in restoring vision, and it is the most frequently performed surgery in the United States.

Did you know?

The first war in which wide-scale use of anesthetics occurred was the Civil War, and 80% of all wounds were in the extremities.

Campylobacter bacteria are found in most chicken meat. If chicken meat is not well cooked or raw mea Campylobacter bacteria are found in most chicken meat. If chicken meat is not well cooked or raw mea
Activity, Food Restriction, and Weight Loss Activity, Food Restriction, and Weight Loss
This girl ran four spinning machines in a cotton mill in Whitnel, North Carolina. Only 4 feet, 3 inc This girl ran four spinning machines in a cotton mill in Whitnel, North Carolina. Only 4 feet, 3 inc
Food jags Food jags
Gui (grilled food) Bulgogi Gui (grilled food) Bulgogi
A very small sampling of organisms in an arctic food web on land. A very small sampling of organisms in an arctic food web on land.
Video: Gas exchange - driving force

For a complete list of videos, visit our video library