Wild brown bear observed using a tool

(PhysOrg.com) -- Because brown bears are so reclusive, not to mention dangerous to be around, not a lot is really known about their brain power. This is actually rather odd because bears have the largest brains for their ...

Curiosity rover finds an ancient oasis on Mars

If you could travel back in time 3.5 billion years, what would Mars look like? The picture is evolving among scientists working with NASA's Curiosity rover.

Hibernating for a trip to Mars, the way bears do

Hibernating astronauts could be the best way to save mission costs, reduce the size of spacecraft by a third and keep crew healthy on their way to Mars. An ESA-led investigation suggests that human hibernation goes beyond ...

Russians drive from Russia to Canada over North Pole

Russian explorers headed home Thursday after proving it is possible to drive from Russia to Canada across the North Pole, in buses with bloated tires over drifting ice, using a pickaxe to clear the way.

Mama bears use human shields to protect cubs: study

Brown bear mothers in a Swedish forest use human "shields" against murderous males, overcoming their own fear to raise defenceless cubs near villages where hunters live, researchers said Wednesday.

The physics behind a water bear's lumbering gait

Plump and ponderous, tardigrades earned the nickname "water bears" when scientists first observed the 0.02-inch-long animals' distinctive lumbering gaits in the 18th century. Their dumpy plod, however, raises the question ...

NASA's Curiosity Mars rover finds a clay cache

NASA's Curiosity rover has confirmed that the region on Mars it's exploring, called the "clay-bearing unit," is well deserving of its name. Two samples the rover recently drilled at rock targets called "Aberlady" and "Kilmarie" ...

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