Uncategorized
- Humans
A 90,000-year-old bone knife hints special tools appeared early in Africa
The discovery of a bone knife in a Moroccan cave points to the ancient emergence of specialized toolmaking in the region.
- Animals
Giraffes inherit their spots from their mothers
Africa’s tallest creatures get their characteristic patterns of spots from their moms, a new study finds.
- Physics
Dazzling laser feats earn these physicists a Nobel
The 2018 Nobel Prize in physics went to scientists — including the third-ever female winner — who made optical tweezers and boosted the strength of laser pulses.
- Climate
Tracking how rainfall morphs Earth’s surface could help forecast flooding
After Hurricane Harvey, scientists used GPS networks to track how Earth’s surface morphed under the weight of floodwaters.
