News
- Health & Medicine
Parasite can’t survive without its tail
The protozoan that causes African sleeping sickness can't survive in the mammalian bloodstream without its long, whiplike tail.
- Planetary Science
Propelling Evidence: Cassini finds clues to source of Saturn’s rings
Four propeller-shaped gaps in one of Saturn's main rings are the latest evidence that a shattered moon produced the planet's dazzling hoops.
- Earth
Coral Clues: Rise and fall of reefs record quakes’ effects
Shallow coral reefs around islands west of Sumatra chronicled the uplift and subsidence that resulted from the massive quakes that struck that region in 2004 and 2005.
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Awake and Learning: Memory storage begins before bedtime
Although a good night's sleep aids memory storage, learning isn't a task that just happens overnight.
