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6,888 results for: Bears
- Life
Study shows where identical twins part ways
By birth, genetic doubles are already using their DNA differently.
- Life
Oldest mites in amber discovered
Two new species of arthropods found in 230-million-year-old fossilized resin show similarities to modern-day species.
- Humans
The man behind Sarcastic Rover
NASA’s newest rover, Curiosity, wasn’t alone on Mars for long.
- Anthropology
Sticks, stones and bones reveal emergence of a hunter-gatherer culture
A cave in southern Africa was occupied by people very much like those living in the region today.
- Humans
Apocalypse, not so fast
Guatemalan find suggests mention of a date far in the future served a Maya king’s immediate needs.
- Archaeology
Oldest pottery comes from Chinese cave
New dates show that East Asian hunter-gatherers fired up cooking vessels 20,000 years ago.
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Frozen Planet: A World Beyond Imagination by Alastair Fothergill and Vanessa Berlowitz
Journey with four polar denizens — polar bear, Arctic fox, Adélie penguin and wandering albatross — through seasonal changes in this companion to a BBC television series. Firefly Books, 2011, 312 p., $39.95
- Health & Medicine
Ovulation spurred by newfound semen ingredient
A common growth-boosting protein may act as a pregnancy-protecting hormone in humans.
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2011 Science News of the Year: Life
Multicellular life from a test tube In less than two months, yeast in a test tube evolved from single-celled life to bristly multicellular structures. The new, snowflakelike forms act like multicellular organisms, reproducing by splitting when they reach large sizes and evolving further in response to harsh conditions, William Ratcliff of the University of Minnesota, […]
- Health & Medicine
Cartilage Creation
New joint tissue could keep people moving, reducing need for knee or hip replacements.
- Life
Stem cell treatment spurs cartilage growth
A small molecule called kartogenin prompts the manufacture of lost connective tissue in mice.
- Humans
Maya wall calendar discovered
Classic-era structure displays rare calculations of lunar and planetary cycles.
