Even infants too young to discern the meaning of words seem better able to learn while listening to the sound of human speech than while listening to nonsense — speech run backward. Little surprise there, perhaps, but a study shows that recordings of lemur calls spark learning, too.
A fisherman saw the bird along the Nile River with a suspicious electronic device fixed to its wing. The fisherman made a citizen's arrest. Concerned officials found it was not a spying device, just a wildlife tracker.
While Florida hasn't yet declared victory, more than 128,000 of the destructive creatures have been found and eradicated in the past two years. Labrador retrievers are being used to sniff out the snails.
A decade ago, cranes that had never before migrated followed the lead of an ultralight plane to learn the route south. Several generations later, old cranes are teaching young birds to navigate that same route. It's a clue that migration is a combination of nature and nurture, researchers say.
No one knows exactly how farmers use antibiotics. Many public health experts say the government should collect and publish detailed information because antibiotic-resistant bacteria are an increasingly urgent problem. But many farm groups are opposed.
There are few things more chilling than the sound of a nearby rattlesnake. That distinctive sound serves as a warning that trouble could be on the way. The only thing worse than hearing a rattlesnake within striking distance — is not hearing it at all. A herpetologist in South Dakota's Black Hills has discovered a growing number of Prairie Rattlesnakes with atrophied tail muscles; he believes it's a genetic issue that multiplies because those snakes that can rattle usually end up being killed. But others think the situation could be an evolutionary development to avoid detection.
Age-related fumbles of memory are often feared as early signs of Alzheimer's dementia, but recent research confirms an important difference. The underlying biology of the two sorts of memory loss aren't the same. And the age-related form may be reversible someday.
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