Search Results for: Mammoths
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780 results for: Mammoths
- Paleontology
L.A.’s Oldest Tourist Trap
Modern excavations at the La Brea tar pits are revealing a wealth of information about local food chains during recent ice ages, as well as details about what happened to trapped animals in their final hours.
By Sid Perkins - Paleontology
Fertile Ground: Snippets of DNA persist in soil for millennia
Minuscule samples of sediment from New Zealand and Siberia have yielded bits of DNA from dozens of animals and plants, including the oldest DNA sequences yet found that can be traced to a specific organism.
By Sid Perkins - Humans
From the June 14, 1930, issue
WELLAND CANAL Slightly more than a century after the falls and rapids of Niagara were first overcome for water transportation by a canal only 8 feet deep, there has been completed on practically the same site a mammoth structure that will pass giant 600-foot lake grain vessels up and down the 326.5-foot difference in elevation […]
By Science News - Astronomy
Celestial Divide: Finding two families of galaxies
By analyzing data from a mammoth sky survey, astromoners have found that galaxies divide into two distinct families, depending on their stellar mass.
By Ron Cowen -
From the January 11, 1930, issue
THOMAS H. MORGAN GIVEN NEW HONOR The American Association for the Advancement of Science has chosen Dr. Thomas Hunt Morgan to succeed the eminent physicist Dr. Robert Andrews Millikan as president. To many the name of Thomas Hunt Morgan is synonymous with the modern theory of the gene as the determining factor in heredity. Upon […]
By Science News - Astronomy
Pluto or bust?
A new National Research Council report may revive plans to send a spacecraft to explore Pluto and its neighborhood.
By Ron Cowen - Archaeology
New World hunters get a reprieve
New radiocarbon evidence indicates that, beginning around 11,000 years ago, human hunters contributed to North American mammal extinctions that had already been triggered by pronounced climate shifts.
By Bruce Bower - Astronomy
Big, Bigger . . . Biggest?
Galaxy map reveals the limits of cosmic structure.
By Ron Cowen - Anthropology
Drowned land holds clue to first Americans
A map of a now-flooded region charts the path that Asians may have taken to first reach the Americas.
- Astronomy
Repainting the cosmic palette
After all the hue and cry about the color of the universe, astronomers have now revised their findings: It’s not pale green, but boring old beige.
By Ron Cowen - Astronomy
Martian equator: A watery outpost?
A catastrophic outpouring of water—four times the volume contained in Lake Tahoe—may have gushed from fissures near the equator on Mars as recently as 10 million years ago.
By Ron Cowen - Archaeology
Ancestors who came in from the cold
Researchers found the remains of a 36,000-year-old human occupation in the Russian Arctic, which represents the earliest evidence of a human presence that far north.
By Bruce Bower