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25 to 36 of 1,065 stories (140 over past year)
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Setting the Stage for Life: Scientists Make Key Discovery About the Atmosphere of Early Earth
November 30, 2011 — Scientists have used the oldest minerals on Earth to reconstruct the atmospheric conditions present on Earth very soon after its birth. The findings are the first direct evidence of what the ancient ... > full story -
Ancient Environment Found to Drive Marine Biodiversity
November 24, 2011 — Much of our knowledge about past life has come from the fossil record -- but how accurately does that reflect the true history and drivers of biodiversity on ... > full storyMore: -
Spiders, Webs and Insects: A New Perspective on Evolutionary History
November 24, 2011 — The orb web, typical of a large number of spider species, has a single evolutionary origin, according to molecular phylogenetic research. The study presents the hypothesis that the diversification of ... > full story -
Date and Rate of Earth's Most Extreme Extinction Pinpointed: Results Stem from Largest Ever Examination of Fossil Marine Species
November 17, 2011 — Through the analysis of various types of dating techniques on well-preserved sedimentary sections from South China to Tibet, researchers determined that the mass extinction peaked about 252.28 ... > full story -
Fossil Moths Show Their True Colors
November 15, 2011 — The brightest hues in nature are produced by tiny patterns in, say, feathers or scales rather than pigments. These so-called "structural colors" are widespread, giving opals their fire, people their ... > full story -
Shared Genes With Neanderthal Relatives: Modern East Asians Share Genetic Material With Prehistoric Denisovans
October 31, 2011 — During human evolution our ancestors mated with Neanderthals, but also with other related hominids. Researchers have now shown that people in East Asia share genetic material with Denisovans, who got ... > full story -
Birthplace for Primitive Life on Earth? Researchers Identify Mud Volcanoes in Greenland as Niche for Early Life
October 25, 2011 — The mud volcanoes at Isua, in south-west Greenland, have been identified as a possible birthplace for life on Earth by an international team headed by researchers. Almost four billion years ago, ... > full story -
New Evidence for the Oldest Oxygen-Breathing Life on Land
October 19, 2011 — New research shows the first evidence that oxygen-breathing bacteria occupied and thrived on land 100 million years earlier than previously ... > full storyMore: -
Sexual Selection by Sugar Molecule Helped Determine Human Origins, Researchers Say
October 10, 2011 — Researchers say that losing the ability to make a particular kind of sugar molecule boosted disease protection in early hominids, and may have directed the evolutionary emergence of our ancestors, ... > full story -
First Comet Found With Ocean-Like Water
October 5, 2011 — New evidence supports the theory that comets delivered a significant portion of Earth's oceans, which scientists believe formed about eight million years after the planet ... > full storyMore: -
Last Universal Common Ancestor More Complex Than Previously Thought
October 5, 2011 — Scientists call it LUCA, the Last Universal Common Ancestor, but they don't know much about this great-grandparent of all living things. Many believe LUCA was little more than a crude assemblage of ... > full story -
Lungfish Provides Insight to Life on Land: 'Humans Are Just Modified Fish'
October 4, 2011 — A study into the muscle development of several different fish has given insights into the genetic leap that set the scene for the evolution of hind legs in terrestrial animals. This innovation gave ... > full story
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