You need the Flash Player version 8.0.0.0 or higher and a JavaScript enabled browser to view this site

Viruses: Introduction to Viruses

Related Article: Learn more about life science.

Diseases caused by viruses are as potent as war and natural disaster. Deadly, universal and small, viruses are powerless outside a living cell. Viruses are highly selective.
Recommend

browse videos in
life science

8.5 Million Farmers Grow GM (3:33)

8.5 Million Farmers Grow Genetically Modified (GM) Crops; More Benefits to Poor Farmers Says James. ISAAA Chairman Clive James summarizes the global status of genetically modified (GM) crops -- highlighting results from 2005 as well as double-digit... More »

Reduced Plowing Good for Soil (4:02)

Reduced Plowing Good for Soil; Benefits of Con-til Rapidly Accumulating. Four experts and seven farmers discuss how biotech crops help farmers globally eliminate plowing or tilling the soil -- thereby reducing greenhouse gas emissions, erosion and... More »

GM Reduces Pesticide Application (3:15)

GM Reduces Pesticide Application; 10-Year Decrease of 172,000 Metric Tons. Since 1996, farmers have reduced pesticide applications by 172,000 metric tons as a direct result of biotech crops. Farmers from eight countries discuss benefits within their... More »

Net Income $27 Billion Greater (3:01)

Net Income $27 Billion Greater; GM Crops Improve Yields and Farm Incomes. Since 1996, farmers have increased their net incomes by $27 billion growing biotech crops. Farmers from eight countries discuss how genetically modified (GM) crops have... More »

Health and Well-Being Improves (3:17)

Health and Well-Being Improves; Genetically Modified Crops Contribute to Quality of Life. Biotech benefits contribute to the health and well-being of farm families and their communities. Two experts and farmers from eight countries discuss specific... More »

recently added

Discovery News: Earth: Human Influence on Ecology (3:10)

Professor Erle Ellis is proposing a new way to map the Earth's biomes, taking into account the effect humans have had on the planet. Jorge Ribas reports in this Discovery News video.

Deconstructed: Aquarium Filtration (2:37)

Find out how tropical fish get a little room to breathe in this clip from The Science Channel's "Deconstructed."

Sharks Under Glass: Shark Transportation (2:44)

Transporting sharks is not an easy job. Find out how it's done in this clip from Discovery Channel's "Sharks Under Glass."

Sharks Under Glass: Shark Training (2:19)

This clip from Discovery Channel's "Sharks Under Glass" takes us to Chicago's Shedd Aquarium, where a training program used for dolphins and whales has been adapted for sharks.

Sharks Under Glass: Shark Reproduction (2:40)

Some sharks give birth and some sharks lay eggs. Check out this video of a shark giving birth at the Vancouver Aquarium in this clip from Discovery Channel's "Sharks Under Glass."

Sharks Under Glass: Shark Feeding (2:21)

Feeding sharks is an expensive proposition. Find out how several aquariums get the job done in this clip from Discovery Channel's "Sharks Under Glass."

Sharks Under Glass: Shark Encounters (1:43)

In this clip from Discovery Channel's "Sharks Under Glass," the Long Beach Aquarium's Shark Encounter Program gives daring souls the oppportunity to hop in the tank with sharks.

Sharks Under Glass: Shark Collection (3:00)

Ever wonder how sharks get to aquariums? This clip from Discovery Channel's "Sharks Under Glass" provides an inside look at how professional shark collectors capture sharks and prepare them for the journey.

Sharks Under Glass: Open Ocean Aquarium Design (2:41)

Find out how modern aquarium design has evolved to give an illusion of the ocean in this clip from Discovery Channel's "Sharks Under Glass."

Sharks Under Glass: Kinder Gentler Sharks (1:59)

If you think all sharks are ferocious man eaters, then check out the shark species at the Long Beach Aquarium of the Pacific in this clip from Discovery Channel's "Sharks Under Glass."