Life
- Life
Body attacks lab-made stem cells
In mice, the immune system targets and destroys reprogrammed adult skin cells, raising questions about their medical potential.
- Life
New fungi the dark matter of mushrooms
Scientists see the first images of an ancient lineage of microbes that can’t be grown in the lab.
-
- Life
Animals quickly colonized freshwater
Fossilized worm burrows show that life had moved beyond the oceans by 530 million years ago.
- Life
Fungus strikes but doesn’t kill European bats
Organism that is devastating North American populations might have coevolved with hosts overseas.
- Health & Medicine
Going Under
While every anesthetic drug has its own effect, scientists know little about how the various versions work on the brain to transport patients from normal waking awareness to dreamless nothingness.
- Chemistry
Spray of zinc marks fertilization
Embryonic development begins with an outpouring of the metal, illustrating chemistry's importance in orchestrating biological processes.
- Earth
Warming dents corn and wheat yields
Rising temperatures have decreased global grain production and may be partly responsible for food price increases.
- Life
Giant ants once roamed Wyoming
The first complete fossil found in North America suggests warm spells in the far north allowed big insects to spread.
-
- Life
Sickle-cell may blunt, not stop, malaria
Once thought to keep parasite out of cells, the trait appears to diminish the severity of infection.
- Life
Genes & Cells
A boost for tired antibiotics, plus a fishy mom’s mucus and high-gravity microbes in this week’s news.
