Life
- Health & Medicine
How mice smell fear
Mice may use a cluster of neurons known as the Grueneberg ganglion to detect alarm pheromones.
- Earth
Deep sea viruses are an unexpected ringer
Deep-sea vent waters harbor high numbers virus-carrying bacteria. The viruses may actually help the bacteria survive the harsh vent environments.
- Life
Ground squirrels use ‘armpit effect’
Hibernating ground squirrels forget who’s who, so thank goodness for the armpit effect.
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- Health & Medicine
Immune cells show long-term memory
Survivors of the 1918 Spanish flu pandemic still make antibodies against the virus, revealing a long-lived immunity previously thought impossible.
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- Archaeology
Saharan surprise
A chance discovery in the Sahara leads to the excavation of a Stone Age cemetery containing remains from two lakeside cultures.
- Ecosystems
Slave ants rebel
Species vulnerable to enslavement may evolve ways to fight their captors.
- Ecosystems
Coastal dead zones expanding
The number of coastal areas known as dead zones is on the rise. A new tally reports more than 400 of the oxygen starved regions worldwide.
- Life
Bacteria use poison to make food
Bacteria from Mono Lake conduct photosynthesis with arsenic, a form of the process that may be a relic of life on Earth before the advent of an oxygen atmosphere.
- Life
H9N2 avian flu strain has pandemic potential
Just one change in a strain of avian flu virus makes it transmissible by direct contact in ferrets, but the virus still lacks the ability to spread by airborne particles.
- Plants
Bittersweet fruits
A new study provides strong evidence that fruits harm predators with the same chemicals that, for example, give chili peppers their spice.
