« previous next »
« previous next »
 

Did you know?

Malaria was not eliminated in the United States until 1951. The term eliminated means that no new cases arise in a country for 3 years.

Did you know?

The first oncogene was discovered in 1970 and was termed SRC (pronounced "SARK").

Did you know?

Long-term mental and physical effects from substance abuse include: paranoia, psychosis, immune deficiencies, and organ damage.

Did you know?

Sperm cells are so tiny that 400 to 500 million (400,000,000–500,000,000) of them fit onto 1 tsp.

Did you know?

Chronic marijuana use can damage the white blood cells and reduce the immune system's ability to respond to disease by as much as 40%. Without a strong immune system, the body is vulnerable to all kinds of degenerative and infectious diseases.

African (above) and Asiatic (below) lions, as illustrated in Johnsons Book of Nature African (above) and Asiatic (below) lions, as illustrated in Johnsons Book of Nature
NATURE NATURE
Nature Nature
These monolithic figures from Easter Island suggest the contemplative nature of philosophy, which ca These monolithic figures from Easter Island suggest the contemplative nature of philosophy, which ca
Barbara Kruger, Untitled (We won't play nature to your culture). Barbara Kruger, Untitled (We won't play nature to your culture).
Kindergarten nature drawing Kindergarten nature drawing
Video: Covalent bonds - role in the body

For a complete list of videos, visit our video library