Monkey experiments offer clues on origin of language

Green and vervet monkeys live on either side of Africa and their evolutionary paths diverged 3.5 million years ago, and yet the two species share a hard-wired vocabulary when faced with danger, clever experiments have shown.

A drone for security and safety (w/Video)

(PhysOrg.com) -- European researchers have developed a small robotic drone capable of helping save lives in emergency situations or preventing terrorist attacks in urban areas.

Commercial use of drones has already taken flight

The camera swoops over the green expanse of the Everglades hundreds of feet below, like many helicopter shots you've seen on television. But suddenly it dips and flies through a narrow, shaded canal where kayakers are paddling, ...

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