Want a gorgeous garden? Just add pee, according to a new study that says nitrogen-rich urine and magnesium-rich ash work together to form a powerful—and cheap—fertilizer.

The official world's tallest man is an eight-foot-one-inch (246-centimeter) 27-year-old from Turkey, Guinness World Records announced today. A pituitary tumor had caused his gigantism. Video

A single injection of specialized genes has cured color-blindness in monkeys, a new study says. The same procedure would have cured color-blind humans, one scientist believes.

Authorities are using a robotic submarine to investigate whether the Mafia dumped "hundreds" of radioactive-waste barrels into the sea off Italy.Video.

More than a hundred elephants in Kenya have died in the past year, say conservationists, who blame the worst drought in 12 years as well as continued poaching. Video.

MRSA exposed to manuka honey loses the ability to reproduce, according to a new study that shows how the dark, bitter honey fights staph infections.

Using "leftovers" from liposuction patients, scientists have turned human fat into stem cells, a new study says—an efficient and apparently uncontroversial new method.

Former dolphin trainer Ric O'Barry, star of the new documentary The Cove, again confronts the Japanese town where dolphins are trapped and killed by hand in "drive hunts." Video.

A digital tongue that can measure the human taste of sweetness has been created, a new study says. The technology may someday be used to detect diseases in people.

The H1N1 flu strain may infect half the U.S. population this fall and winter, but it will likely be no worse than seasonal flu, experts say.

Hardcore human runners who can't bear to skip a workout may be hooked in a way that's similar to heroin addiction, according to a new study of rats.

Often promoted for their cancer-fighting power, antioxidants could in fact aid tumor growth, research in human breast cells shows.

Putting the "extreme" in extreme makeover, some Russian surgeons are courting controversy by breaking legs, among other procedures, to make the limbs longer for cosmetic purposes. Video.

Six gorilla orphans of a critically endangered species have been released on an isolated African island. Conservationists hope to move the gorillas into the wider wilderness within three years. Video

Herbs and spices used to flavor food are also green alternatives to synthetic pesticides, scientists say.