765 results
- Genetics
When flowers died out in Arctic, so did mammoths
Genetic analysis finds vegetation change in the Arctic around same time as megafauna extinction.
- Plants
Huge, hollow baobab trees are actually multiple fused stems
The trunk of an African baobab tree can grow to be many meters in diameter but hollow inside. The shape, researchers say, occurs when several stems fuse together.
- Humans
Year in review: Old humans reveal secrets
DNA of the oldest modern humans is rewriting the prehistories of Europe, Siberia and the Americas.
- Paleontology
La Brea Tar Pits yield exquisite Ice Age bees
Ancient bee pupae snug in leafy nest give clues to Pleistocene climate.
- Tech
English Channel tunnel
First proposed in 1802 as a tunnel for horse-drawn carriages, the Channel Tunnel, or Chunnel, was built starting in 1987 and opened in 1994.
- Archaeology
Ancient Siberians may have rarely hunted mammoths
Occasional kills by Stone Age humans could not have driven creatures to extinction, researchers say.
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- Life
Giant zombie virus pulled from permafrost
After lying dormant in Siberian permafrost for 30,000 years, the largest virus ever discovered is just as deadly as it was when mammoths roamed the Earth.
- Ecosystems
Dam demolition lets the Elwha River run free
Removing a dam involves more than impressive explosions. Releasing a river like Washington state's Elwha transforms the landscape and restores important pathways for native fish.
- Anthropology
Teen’s skeleton ties New World settlers to Native Americans
Underwater cave discovery in Mexico shows genetic range of New World’s ancient Asian colonists.
- Humans
Neandertals’ mammoth building project
Stone Age people’s evolutionary cousins may have constructed earliest bone structures.
- Earth
Geologists develop weapons to combat that sinkhole feeling
What do five Porsches, several Kentucky thoroughbreds and a three-story building in Guatemala City have in common? They’ve all been swallowed by sinkholes. Sadly, the sudden cave-ins sometimes claim people’s lives as well. On February 28 the earth opened up underneath the Seffner, Fla., bedroom of Jeff Bush, entombing him. The freak accident highlighted Florida’s […]
