6,859 results
6,859 results for: Bears
- Materials Science
Something to Chew On
Researchers are closer than ever to making synthetic enamel to improve dental implants and perhaps to grow a whole tooth from scratch.
- Humans
From the December 8, 1934, issue
Goose barnacles, the formation of elements, and the nature of cosmic rays.
- Paleontology
Pieces of an Ancestor: African site yields new look at ancient species
Fossils unearthed at sites in eastern Africa provide a rare look at Ardipithecus ramidus, a member of the human evolutionary family that lived more than 4 million years ago.
- Plants
Mommy Greenest
Green leafy moms take care of their offspring in ways that go beyond wrapping them in nice, snug seed coats and packing a nutritious lunch for them.
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Kibble for Thought: Dog diversity prompts new evolution theory
A genetic mutation that researchers have examined in several dog breeds may drive evolution in many other species.
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Babies’ sound path to language skills
A test of early speech perception shows promise as a way to identify 6-month-olds headed for language difficulties as toddlers.
- Animals
Policing egg laying in insect colonies
Kinship by itself can't explain the vigilante justice of some ant, bee, and wasp workers.
- Anthropology
Faithful Ancestors
A controversial fossil analysis supports the view that, more than 3 million years ago, human ancestors living in eastern Africa favored long-term mating partnerships.
- Tech
Quantum dots light up cancer cells in mice
Brightly fluorescent crystals known as quantum dots have the potential to seek out cancerous cells in the body, a trick that could lead to highly precise cancer screening.
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Abused kids lose emotional bearings
Physical abuse and neglect appear to undermine preschoolers' emotional development in different ways.
- Earth
Fighting Water with Water: To lift the city, pump the sea beneath Venice
With technology commonly used in oil fields, engineers could inject large volumes of seawater into sandy strata deep beneath Venice, Italy, to reverse the ground subsidence that plagues the city.
- Humans
From the April 14, 1934, issue
Yawning spells, disagreeable alcohols from anaerobic respiration, and how antibodies protect adults from disease.
