Uncategorized
- Earth
An earlier appearance for the first land plants
Fossilized pollen could show that modern land plants evolved earlier than thought.
- Planetary Science
Antarctic ecosystem holds unusual microbes
Long isolated deep under a glacier, life thrives in dark, salty water by breathing iron and eating sulfates.
- Health & Medicine
Seemingly misplaced DNA acts as lenses
Nocturnal animals orient DNA in retinal cells to focus light.
- Health & Medicine
Epilepsy drug might harm fetuses
Young children born to women who took the drug valproate for epilepsy during pregnancy have lower IQ scores, on average, than children whose moms used a different antiepilepsy medication.
- Life
Lizards sunbathe for another reason
Panther chameleons may regulate their vitamin D levels by lounging in the sun.
- Tech
Cloaked eye still sees
Researchers have proposed a model that would allow sensors to send and receive information virtually undetected.
- Plants
Yo, aphid, I’m red and I’m bad
Apple trees support the idea that red fall colors are a warning signal to insects.
- Space
Massive solar flares captured in 3-D
Distance between orbiting STEREO craft allows better imaging of coronal mass ejections.
- Health & Medicine
Hypoglycemia linked to dementia
Episodes of low blood sugar that require medical attention seem to increase a person’s risk of developing dementia in old age, a study in people with type 2 diabetes shows.
- Humans
An ancient remedy: Bitter herbs and sweet wine
New chemical analyses of wine jars suggest that ancient Egyptians mixed medicinal plants into wine.
- Humans
In teeth, more cracks are better than one
Cracks in tooth enamel, called tufts, distribute force and shield a tooth from fracture, researchers report.
- Life
Early land arthropods sported shells
Ancient ocean-dwelling arthropods may have worn shells to enable their transition to land.
