Uncategorized
- Life
Salamanders don’t regrow limbs from scratch
A closer look at regeneration in axolotl amputees shows that tissue replacement relies on cellular “memory.”
- Physics
Mass mismatch makes mystery for proton’s strange cousin
An exotic cousin of the proton is caught in action again. But its measured mass doesn’t match previous results.
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- Paleontology
Flexible molars made chewing champions out of duck-billed dinosaurs
Tiny scratches in the fossilized teeth of Edmontosaurus suggest what these large herbivores ate and how they ate it.
- Life
H1N1 racks up frequent flier miles
Analyzing global flight paths may help researchers track pandemics, as a new study on H1N1 shows.
- Earth
Dirty snow may bring green burst to mountain peaks
Dust blowing in from distant deserts speeds the melting of snow and may shake up ecosystems on the slopes.
- Life
Protein protects sperm in mice
A protein called GPX5 helps protect sperm from oxidative damage. The finding could help prevent birth defects.
- Health & Medicine
Rheumatoid arthritis drug clears hurdle
Anti-inflammatory injections of golimumab work in people with rheumatoid arthritis who failed to improve on other meds.
- Planetary Science
Losing Louisiana
A new model predicts that rises in sea level, combined with subsiding lands, will claim a tenth of the state by century’s end.
- Earth
Ozone hole trims polar water’s CO2-absorbing power
Simulations also suggest that the dearth of ozone over Antarctica leads to ocean acidification. Simulations also suggest that the dearth of ozone over Antarctica leads to ocean acidification
- Animals
Bat face shapes sound
An oversized appendage in Bourret’s horseshoe bats may aid in long-distance signals.
- Life
Beetle philandering doesn’t work out for the ladies
A common idea about the benefits of multiple matings for females turns out to be wrong for seed beetles.
