News
- Genetics
Neandertal genes in people today came from hook-ups around 47,000 years ago
Most present-day humans carry a small amount of Neandertal DNA that can be traced back to a single period of interbreeding, two genetic analyses find.
- Earth
Earth’s inner core may be changing shape
Earthquake data suggest that all or small patches of the inner core's surface may be swelling and contracting.
- Earth
The 2004 tsunami killed hundreds of thousands. Are we better prepared now?
Twenty years after the deadliest wave in recorded history, most oceans have warning systems and communities have learned how best to escape the danger.
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