6,888 results
6,888 results for: Bears
- Life
Dinosaur embryos were restless, speedy growers
Hundreds of fossils found in China suggest some unhatched dinos kicked their legs.
- Tech
Building robots that slither
Howie Choset is a roboticist, but his team’s creations bear little resemblance to C-3PO or R2-D2. Instead, Choset finds inspiration in nature — specifically, snakes.
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Letters
Cartilage risk I enjoyed Nathan Seppa’s article “Cartilage creation,” (SN: 8/11/12, p. 22) about attempts to generate new cartilage from somatic stem cells. He writes that cartilage evolved “in ancestors who lived shorter lives, carried less body weight and roamed an unpaved world.” Implications: The risk of osteoarthritis increases with age, body weight and impact […]
- Humans
Ancient hominid had an unusual diet
A long-extinct member of the human evolutionary family had an uncommon taste for grasses and sedges.
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- Archaeology
A king’s final hours, told by his mortal remains
The skeleton of Richard III reveals a violent and chaotic end for a controversial English monarch.
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- Space
Atom & Cosmos
The gassy halo engulfing the Milky Way, a comet in the neighborhood, and extraterrestrial rocks as the source of life on Earth.
- Humans
North African Diaspora written in genes
DNA analysis of people from 15 groups identifies distinct groups and migrations.
- Health & Medicine
Test drug eases behavioral symptoms seen in autism
In mouse experiments, the compound curbs repetitive behaviors and improves sociability.
- Life
Killer whale mama’s boys live longer
Survival benefits may explain females’ extended life span following menopause.
- Life
DNA hints at polar bears’ Irish ancestry
Mitochondrial genetic analysis suggests a bit o’ hybridizing long ago with brown bears on the Emerald Isle.
