When volcanos erupt, the type and location of the lava determines what habitat will develop after it stops flowing.

Henrietta Lacks's "immortal" cell line, called "HeLa," is used in everything from cancer treatments to vaccines. A new portrait memorializes her.

As conservation efforts succeed, wolves, leopards, alligators, and other predators colonize new lands.

Online services like Amazon's "Mechanical Turk" have ushered in a golden age in survey research. But is it ethical for researchers to use them?

Could humans be responsible for the extinction of megafauna like giant sloths and mastodons?

Researchers found that Psilocybin and other hallucinogens may prove helpful in their ability to quiet a portion of the brain connected to depression.

3D printing has evolved far beyond printing out a simple item using plastic. For example, scientists Jody Connell and colleagues described an innovative use of the technology to create three-dimensional bacteria cultures.

Rising temperatures are upsetting the bee-orchid pollinating schedule, threatening to snuff out the flower.

Researchers have found that Americans experience radically different health outcomes depending on their race and socioeconomic status.

Ichthyosaurs gave birth to live offspring, had huge eyes and lived all over the world.