News
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Stem cells from bone marrow make new fat
Some body fat comes from stem cells that migrate out of bone marrow.
- Chemistry
Happy fish?
Researchers have detected antidepressant drugs in the brains of fish captured downstream of sewage-treatment plants.
- Anthropology
Neandertals’ tough Stone Age lives
Neandertals that 43,000 years ago inhabited what's now northern Spain faced periodic food shortages and possibly resorted to cannibalism to survive.
- Anthropology
South African find gets younger
The partial skeleton of a human ancestor previously found in South Africa dates to about 2.2 million years ago, roughly 1 million years younger than the original estimates.
- Earth
Pesticides mimic estrogen in shellfish
Two common water pollutants can function in shellfish as estrogen does, but they have different behavioral effects on two species.
- Astronomy
The magnetic link between star and planet
Astronomers have for the first time directly measured the magnetic field of a star known to host a giant planet.
- Tech
A nano–cheese slicer
Stringing a carbon nanotube between two needles yields a nanoscale cheese knife that could improve slicing of biological samples.
- Earth
Dim Harvest: Asian air pollution has limited rice yields
Thick clouds of air pollution over southern Asia and increased concentrations of greenhouse gases in the atmosphere worldwide have reduced rice harvests in India for the past 2 decades.
- Animals
Extreme Tongue: Bat excels at saying ‘Aah’
The new champion among mammals at sticking out its tongue is a small bat from Ecuador.
- Humans
Lunar Outpost: NASA unveils plans for a return to the moon
NASA announced that it would begin in 2020 to assemble a human outpost on the moon.
- Ecosystems
Going Native: Diverse grassland plants edge out crops as biofuel
Biofuels made from mixtures of plants native to prairies can yield more net energy than do biofuels derived from corn and soybeans.
- Earth
Woods to Waters: Wildfires amplify mercury contamination in fish
Forest fires mobilize mercury from the soil and can send the toxic metal into nearby streams and lakes where it accumulates in fish.
