A Mississippi man accused of mailing letters with suspected ricin to national leaders believed he had uncovered a conspiracy to sell human body parts on the black market and claimed "various parties within the government" were trying to ruin his reputation.

BANGKOK (AP) — Conservationists say there's a new threat to the survival of Africa's endangered elephants that may be just as deadly as poachers' bullets: the black-market trade of ivory in cyberspace.

Illegal tusks are being bought and...

Scientists have found more than 50 tiny fragments of a meteor that exploded over Russia's Ural Mountains, and preliminary tests are turning up information about its contents.

A judge released a Florida man charged with smuggling dinosaur fossils into the U.S. from home detention Monday even after a prosecutor argued for tougher bail conditions, saying the suspect could flee because he has access to dinosaur parts that...

New York City Police report that more than 40 percent of all robberies now involve cell phones. And cell phone thefts in Los Angeles, which account for more than a quarter of all the city's robberies, are up 27 percent from this time a year ago, police said.

The debate over how much tax money recreational marijuana laws could produce is playing an outsize role in the campaigns for and against legalization - and both sides concede they're not really sure what would happen.