News in Brief
- Life
Tigers meet, mix in forest corridors
In India, narrow strips of wild land connect small groups of cats.
- Anthropology
Mummified Incan teen drank, did drugs
Girl, who was sacrificed, may have been sedated by alcohol, coca leaves.
- Climate
Wetter permafrost clings to carbon better
In 12-year lab study, moist soil samples released less greenhouse gas as they warmed.
- Planetary Science
Cassini photo puts Earth in perspective
Probe captures planet from 1.4 billion kilometers away.
- Space
Mars meteorite reveals its age
Long difficult to estimate, date of space rocks' formation emerges with new technique.
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Neutrinos caught in evasive behavior
First proof of character shift documented at Japanese detector.
- Animals
Dolphins name themselves with a whistle
The marine mammals respond only to their own handles.
- Earth
Millions of years ago, frozen ice sheet in East Antarctica melted
Warming may have caused ice sheet collapse and huge increase in sea level.
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- Life
Size isn’t only mystery of huge virus
A strange replication method and an unusual genetic sequence are among the mysteries of the outsized Pandoravirus.
- Life
Stem cells made with just seven chemicals
Chemical cocktail turns adult mouse cells into embryonic-like ones.
- Physics
Under magnet’s sway, fluids form simple structures
Droplets wiggle, split and coalesce into simple and dynamic configurations.
