Life
- Humans
Sweeps weak in human evolution
Contrary to conventional wisdom, the rapid spread of beneficial mutations has been relatively rare in the evolutionary history of Homo sapiens, a new study shows.
- Life
Packing away the poison
A genetic adaptation in a Hudson River fish species allows it to simply store toxic pollutants in its fat.
- Life
Hibernation mystery
Somehow overwintering bears slow their metabolic rates far more than their slightly decreased body temperatures would predict.
-
- Life
Carnivorous bladderworts suck up prey
High-speed movies confirm that bug-eating plants are vacuum feeders.
-
- Life
Moonless twilight may cue mass spawning
Subtle color shifts on the nights just after the full moon might synchronize the release of gametes by corals and other marine creatures.
- Life
Fleas leap from feet, not knees
After years of scratching their heads over the question of exactly how the impressive jumpers launch themselves, scientists find an answer.
-
- Life
Small part of brain itching for a fight
A cluster of cells compels aggressive behavior in mice.
- Life
Buried microbes coax energy from rock
In experiments, microorganisms can stimulate minerals to produce hydrogen, a key fuel for growth in a thriving subterranean world.
- Humans
Adaptive no more
A potential benefit in prehistoric lean times, genetic variant may increase risk of gestational diabetes today.
