Biologists studying tool use in a tropical crow species have fastened tiny video cameras to the birds and recorded their search for food.
"We are the first ones to do this on wild birds," says Christian Rutz of the University of Oxford in England. He and his Oxford colleagues attached cameras to the tail feathers of New Caledonian crows so that the devices look...
What Martin Nweeia noticed first when he encountered narwhals, he says, was the sound. In May 2000, as spring was just reaching Baffin Island in the Canadian Arctic, a famed local hunter took Nweeia out on the ice searching the open water for those tusk-bearing, high-Arctic whales. "I was sitting on a bucket out on the ice doing polar bear watch," he says. At that time of year, daylight lasts...
Computers at home or in the office often sit idle for minutes, hours, or days at a time. The Internet now allows researchers to take advantage of this enormous reservoir of unused computer power.
More than 1.6 million people have downloaded software to sift through signals collected by the Arecibo radio telescope in Puerto Rico as part of a search for signs of intelligent...