Ross Toro

The heart is the vital organ that moves oxygenated blood through your body, making life possible.

The U.S. only rates a "C" grade in reaching the goal of reducing premature births to 9.6 percent.

From spinal stimulation to exoskeletons, technologies for overcoming paralysis have come a long way in the 10 years since Christopher Reeve died.

How Tesla coils generate high-voltage electrical fields.

Desertion has never been higher since 1971, when more than 33,000 soldiers deserted.

Unmanned aerial vehicles have been increasingly popular in recent years.

The prostate in relation to the male anatomy.

Humans are just the latest in a long line of hominid species that have emerged in the past six million years.

Chart shows average high and low temperatures of Olympics sites since 1924.

The U.S. and China produce more total e-waste than any other country, according to a new map that tracks e-waste around the world.

The challenge of managing the world's waste in the 21st century.

Climate change threatens to reduce crop yields in much of the world.

Typhoon Haiyan dwarfed recent big storms, but wasn't the largest one recorded.

A by-the-numbers look at the devastation caused by Hurricane Sandy.

The IPCC's 2013 report presents the strongest case yet that humans are responsible for the changes in the Earth's environment.

A recent poll shows that 15 percent of Americans don't use the Internet at all.

Find out all about your lungs and how breathing works.

Find out all about the blood, lungs and blood vessels that make up the circulatory system.

Learn about the muscles that move your body and keep you alive.

How the human body's urinary system works.

All about your body's skeleton, the framework of bones that keeps you together.

Find out about the workings of the brain and nerves.

The skin is the largest organ of the body, and helps protect it from the environment.

Rare earths play a crucial role in the manufacture of modern electronics gear.