Uncategorized
- Life
For worms, one gene can change survival behavior
Natural differences in a single gene cause worms to either eat or avoid harmful bacteria.
- Space
Whiff of Martian methane offers lively possibilities
The definitive discovery in Mars’ atmosphere of methane — often, but not always, a compound hinting at life — introduces the possibility of underground organisms.
- Life
Capuchin monkeys choose the right tool for the nut
New field experiments indicate that wild capuchin monkeys choose the most effective stones for cracking nuts, suggesting deep evolutionary roots for the use of stone tools.
- Health & Medicine
Using checklist reduces surgery complications
Measure twice, cut once: Going over a checklist of procedures in the operating room before and after surgery lowers the complication rate and, in developing countries, saves lives, a study in eight hospitals shows.
