The human body is an amazing machine. Find out how it works from head to toe.
More About the Human Body
What goes on within the human skull is more complex and fantastic than anyone imagined. And scientists are finding ways to delve even deeper into what we know of the mind.
Cheeseburgers, smoking, stress—risk factors for heart disease, a malady reaching global epidemic proportions. Now, discoveries about genetic triggers may help us spot trouble before it starts.
Equal parts armor, air-conditioning system, and genetic heritage, skin is more than skin-deep. Scientists are probing beneath the surface of the body's largest organ.
Males will do whatever it takes to win the mating game: sing, dance, fight a rival, build a house, give a gift. But in the end, it's usually the females who do the choosing.
The Innovators Project
Meet some of science's most important movers and shakers—from past and present.
How to Feed Our Growing Planet
National Geographic explores how we can feed the growing population without overwhelming the planet in our food series.
A new study on marmoset monkeys offers some hints about the causes of stillbirth.
The Titan Missile Museum gives an insider's look at what might have happened if the Cold War had turned into World War III. Video.
Shop Our Space Collection
The updated companion book to Carl Sagan's Cosmos, featuring a new forward by Neil deGrasse Tyson is now available. Proceeds support our mission programs, which protect species, habitats, and cultures.