News
- Math
Test decodes dolphins’ math skills
Dolphins could use mental math to locate prey in clouds of bubbles.
By Meghan Rosen - Health & Medicine
Sperm analyzed, one by one
A close look at the sex cell’s DNA reveals basic molecular processes.
- Space
Black hole theory deepens lithium crisis
A new proposal suggests a potential new source of the element as astrophysicists try to explain why it’s in such short supply.
By Nadia Drake - Health & Medicine
Egg in tiny doses curbs allergy
Giving allergic kids minuscule bits of problem food and gradually increasing it over many months wipes out reactions in some, a study finds.
By Nathan Seppa - Earth
Field test stashes climate-warming carbon in deep ocean
Strategically dumping the metal stimulates a bloom of microscopic creatures that carry the greenhouse gas to Davy Jones’s locker.
By Devin Powell - Humans
Mideast violence goes way back
One-quarter of skulls excavated in troubled region display injuries from clubs or other weapons.
By Bruce Bower - Life
Study shows where identical twins part ways
By birth, genetic doubles are already using their DNA differently.
- Humans
Afghanistan on 240 incidents a week
A computer simulation forecasts insurgent activity by analyzing U.S. military logs released on WikiLeaks.
- Physics
How to walk on water
Physicists use X-rays to probe how a fluid can support a person's weight.
By Devin Powell - Health & Medicine
White dental fillings may impair kids’ behavior
Effects seen only for fillings that used bis-GMA, a resin derived from bisphenol A.
By Janet Raloff - Life
Insulin may be Big Antler hormone
Extra sensitivity to the hormone in certain developing tissues might give animals their oversized weapons and ornaments.
By Susan Milius - Life
Skinny searchers keep fat ants full
By controlling movement out of an ant nest, researchers discover that ants weigh tubbiness in deciding who hunts for food.
By Meghan Rosen