New DNA-based research suggests dogs were domesticated in a single event, in contrast with a previous hypothesis
Logging, agriculture, mining and fires recently have eliminated a larger chunk of vast expanses of forests or naturally treeless ecosystems than you might think
Brown bears paw the ground to leave one another smelly messages
The answer may surprise you
Memories for birds might be stored in only one of two hemispheres, which could bring advantages
Climate change and overfishing have made the penguins’ feeding grounds a mirage—which has led to a drop in penguin population. Jason G. Goldman reports.
Guppies exposed to predators tend to aggregate into smaller, more tightly knit groups, which may allow them to coordinate their predator avoidance strategies. Jason G. Goldman reports.
The critically endangered birds have done well in captive breeding, meaning they may be ready once more for wild living, and the repertoire of calls associated with it. Jason G. Goldman reports.
The cichlid, a small fish, has one of the most incredible visual systems known—which allows it to adapt to differently colored environments. Jason G. Goldman reports.
Some predators are attracted to the food in bird feeders, and end up targeting nestlings, too. Jason G. Goldman reports.
Untapped human abilities and new technologies could identify criminals and fight crime
Some marine mammals can compare time periods and sense milliseconds of difference
If a weak piglet positions itself next to a strong sibling while feeding, it may get some extra nutrition from inadvertently stimulated mammary glands.
In areas where the white-nose syndrome fungus has been around for awhile, little brown bats seem to have found a way to limit the disease damage.
The persona of some fishes bends to conform to group dynamics, but it ultimately remains constant
A study of white female nurses found those who were more optimistic were a third less likely to die of any cause
They can solve puzzles that solitary leopards and tigers can’t—evidence that sociality promotes high-level cognition
An orangutan matched researchers' predictions about which mixed beverage he would choose based on his relative fondness for the separate ingredients.
Alaskan river otters can gain valuable information about one another by sniffing around their latrines. Jason G. Goldman reports.
With a shorter season of sea ice, polar bears have less access to marine mammals. But switching to a terrestrial diet deprives them of the fatty seal meals they need to thrive.