6,913 results
6,913 results for: Bears
- Earth
Dinosaurs, in living color
Researchers find microscopic structures in some fossils that may have held pigments.
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Book Review: Massive: The Missing Particle That Sparked the Greatest Hunt in Science by Ian Sample
Review by Marissa Cevallos.
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The Great White Bear: A Natural and Unnatural History of the Polar Bear by Kieran Mulvaney
Starting with the fact that polar bears have black skin, this book offers surprises and up-to-date information about the Arctic’s iconic top predator. Houghton Mifflin Harcourt, 2011, 251 p., $26.
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Book Review: Feathers: The Evolution of a Natural Miracle by Thor Hanson
Review by Sid Perkins.
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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
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- Health & Medicine
Looking Ahead: Tests might predict Alzheimer’s risk
Two tests show promise in detecting Alzheimer's disease or other cognitive impairment years before symptoms arise.
- Health & Medicine
Got Data? Consuming calcium, dairy doesn’t keep off weight
Dairy products and other calcium-containing foods don't prevent weight gain, according to a 12-year study of middle-aged men.
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Grown-Up Connections: Mice, monkeys remake brain links as adults
Two new studies offer a glimpse of extensive remodeling of nerve connections in the brain's outer layer, or cortex, during adulthood in mice and monkeys.
- Earth
Tiny Bubbles: Oldest evidence yet for methane makers
Analyses of the gases dissolved in water trapped in ancient minerals suggest that methane-generating microbes have been around almost 3.5 billion years.
- Anthropology
Branchless Evolution: Fossils point to single hominid root
Fossils of a 4.1-million-year-old human ancestor in Ethiopia bolster the controversial idea that early members of our evolutionary family arose one species at a time rather than branching out into numerous species.
