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Life
Contender for world’s oldest dinosaur identified
An African specimen suggests the lineage may have arisen 15 million years earlier than thought.
By Tanya Lewis -
Life
Dinosaur embryos were restless, speedy growers
Hundreds of fossils found in China suggest some unhatched dinos kicked their legs.
By Erin Wayman -
Lessons from the Torpid
Hibernators have some helpful tips for keeping humans healthy
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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 […]
By Science News -
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.
By Roberta Kwok -
Humans
Ancient hominid had an unusual diet
A long-extinct member of the human evolutionary family had an uncommon taste for grasses and sedges.
By Bruce Bower -
Animals
A Different Kind of Smart
Animals’ cognitive shortcomings are as revealing as their genius.
By Susan Milius -
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.
By Science News