News
- Life
Ocean acidification may make fish foolhardy
Rising carbon dioxide alters fish larvae’s sense of smell, which they use to avoid predators and find their way home.
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- Health & Medicine
Vaccine for Marburg virus passes monkey test
Tests suggest that the lethal hemorrhagic virus can be stopped if countered soon after exposure.
By Nathan Seppa - Climate
Methane releases in arctic seas could wreak devastation
Warming climate could lead to dead zones, acidification and shifts at the base of the ocean’s food chain.
By Sid Perkins - Tech
What Jefferson was thinking
Imaging technology reveals a last-minute revision to the Declaration of Independence.
By Janet Raloff - Humans
Botox injections put a crease in emotional evaluations
By immobilizing a muscle needed for frowning, Botox injections may interfere with a person’s ability to assess others’ emotions.
By Bruce Bower - Life
Saber-toothed cats strong-armed prey
Smilodon fatalis used strong forelimbs to pin victims, an analysis of fossils shows.
- Life
Evolutionary adaptation breeds gender-identification confusion
The rise of camouflage among some lizards in White Sands National Monument has generated a communication breakdown.
By Susan Milius - Health & Medicine
For most centenarians, longevity is written in the DNA
A study of people who live past 100 reveals many genetic paths to a long life.
- Health & Medicine
Stem cells from blood a ‘huge’ milestone
New technique promises to be easier, cheaper and faster than other harvesting methods.
- Life
Having BFFs brings longevity to female baboons
A seven-year study of one African troop finds that females live longer if they form close, lasting friendships.
By Bruce Bower - Earth
African fossils suggest complex life arose early
Researchers find evidence that Earth’s earliest multicellular life got going 2.1 billion years ago.