Activation of brain region can change a monkey's choice
Artificially stimulating a brain region believed to play a key role in learning, reward and motivation induced monkeys to change which of two images they choose to look at. In experiments reported online ...
Computers see through faked expressions of pain better than people
A joint study by researchers at the University of California San Diego and the University of Toronto has found that a computer system spots real or faked expressions of pain more accurately than people can.
Antarctic moss lives after 1,500 years under ice
Researchers from the British Antarctic Survey and University of Reading report in Current Biology on March 17 that Antarctic mosses can essentially come back to life after 1,500 completely inactive years ...
Virus DNA first found in Neanderthal genome identified in modern humans
The machinery of mitosis: Kinetechores, centrioles and chromosome pumps
Out of Africa date brought forward
A whale with a distinctly human-like voice
For the first time, researchers have been able to show by acoustic analysis that whales—or at least one very special white whale—can imitate the voices of humans. That's a surprise, because whales typically ...
Cuttlefish have high definition polarization vision, researchers discover
Cuttlefish have the most acute polarization vision yet found in any animal, researchers at the University of Bristol have discovered by showing them movies on a modified LCD computer screen to test their eyesight.
Genetic analysis shows tortoise species thought to be extinct for 150 years still lives
Dozens of giant tortoises of a species believed extinct for 150 years may still be living at a remote location in the Galapagos Islands, a genetic analysis conducted by Yale University researchers reveals.
Fish as good as chimpanzees at choosing the best partner for a task
Coral trout are fast when chasing prey above the reefs of their habitat, but can't pursue their quarry if it buries itself into a hard-to-reach reef crevice.
A bird-pollinated flower with a rather ingenious twist
When researchers studying several bird-pollinated species of Impatiens flowers in the mountains of western Cameroon noticed one with an odd, upwardly curving nectar spur, they couldn't imagine how any su ...
Archerfish target shoot with 'skillfully thrown' water
Archerfish hunt by shooting jets of water at unsuspecting insects, spiders, or even small lizards on leaves or twigs above, knocking them into the water below before gobbling them up. Now, a study in the ...
Study sheds light on 'reinforcement' in wildflowers
Plants or animals using color to attract a mate is fairly common in nature, but for Phlox drummondii, a wildflower commonly known as Drummond's phlox, just the opposite is true.
Researchers identify a pheromone in the urine of male tilapia fish that stimulates spawning in females
The exchange of chemical signals between organisms is considered the oldest form of communication. Acting as messenger molecules, pheromones regulate social interactions between conspecifics, for example, ...