2,657 results
- Anthropology
Hybrid-Driven Evolution: Genomes show complexity of human-chimp split
A controversial new genetic comparison suggests that human and chimpanzee ancestors interbred for several million years before evolving into reproductively separate species no more than 6.3 million years ago.
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Goal-Oriented Brain Cells: Neurons may track action as a prelude to empathy
Nerve cells located toward the back of a monkey's brain appear to assist in discerning the goals of specific actions.
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Self-Serve Brains
New brain-imaging studies and investigations of certain types of brain damage suggest that the right hemisphere typically coordinates one's sense of being a self, with a body and a set of life experiences distinct from those of other people.
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Early Stress in Rats Bites Memory Later On: Inadequate care to young animals delivers delayed hit to the brain
The stress of receiving poor maternal care for a short period after birth comes back to haunt rats by stimulating memory losses and related brain disturbances in middle age.
- Humans
From the May 4, 1935, issue
New National Academy of Sciences president, discovery of element 93 confirmed, and brains studies involving a monkey swinging on a trapeze.
- Anthropology
Branchless Evolution: Fossils point to single hominid root
Fossils of a 4.1-million-year-old human ancestor in Ethiopia bolster the controversial idea that early members of our evolutionary family arose one species at a time rather than branching out into numerous species.
- Health & Medicine
Male contraceptive shows promise in monkeys
A shot that primes the immune system against a sperm protein might be the next male contraceptive.
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Babies Learn to Save Face: Infants get prepped to perceive
A minimal amount of parent-directed training at home allows babies to sustain facial-discrimination skills that they would otherwise lose by age 9 months.
- Animals
Beyond Falsetto: Do mice sing at ultrasonic frequencies?
Male mice may serenade prospective mates at pitches about two octaves higher than the shrillest sounds audible to the human ear. With Audio.
- Animals
New Mammals: Coincidence, shopping yield two species
Researchers have identified a new species of monkey in Africa and a rodent in Asia that belongs to a new family among mammals.
- Humans
Ballot Roulette
In the midst of rapid change in voting technology, researchers are finding causes for concern as well as inventing new equipment and schemes to improve the accuracy and integrity of elections.
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Eat Smart
Your daily diet may have an impact on your brain's resiliency in the face of injury or disease.
