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Life

Losing sleep

A genetic source of mental retardation and autism may also disrupt sleep patterns.

Health & Medicine

Vessel rescue

A blood pressure medication limits damage to the aorta in people with Marfan syndrome, possibly signaling a new therapy for the condition.

Earth

Under Ice

Cruising in an icebreaker to the top of the world, scientists identified the aftermath of an event once thought impossible: a violent volcanic eruption on the deep-sea floor.

Life

Fossil helps document shift from sea to land

New fossils of an ancient, four-limbed creature help fill in the blanks of the evolutionary transition between fish and the first land-adapted vertebrates.