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10 Votes Vote

Jaws, Not Brains, Define Early Human Species

Posted by External 17 hours ago General
http://feedproxy.google.com — The extinct human species long thought of as the earliest known member of the human family may be at least a half million years older than previously thought, according to state-of-the-art computer models of the species. Read More
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How were fossil tracks made by Early Triassic swimming reptiles so well preserved?

Posted by External 5 days ago General
http://feeds.sciencedaily.com — That swim tracks made by tetrapods occur in high numbers in deposits from the Early Triassic is well known. What is less clear is why the tracks are so abundant and well preserved. Paleontologists have now determined that a unique combination of factors in Early Triassic delta systems resulted in the production and unusually widespread preservation of the swim tracks: delayed ecologic recovery, d Read More
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6 Votes Vote

Images: 2 Fossils of Tiny Early Mammals

Posted by External 20 days ago General
http://feedproxy.google.com — Researchers have revealed the oldest tree-dwelling mammal ancestor and the earliest known burrowing mammalian. The amazing fossils were discovered in lake sediments in China and date back some 160 million years. Read More
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People with Mental Disorders Risk an Early Death

Posted by External 21 days ago General
http://feedproxy.google.com — People with mental disorders are two times more likely to die early than their peers in the general population — and not just because of factors like suicide, a new study suggests. Read More
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11 Votes Vote

Swimming reptiles make their mark in the Early Triassic

Posted by External 23 days ago General
http://feeds.sciencedaily.com — Vertebrate tracks provide valuable information about animal behavior and environments. Swim tracks are a unique type of vertebrate track because they are produced underwater by buoyant trackmakers, and specific factors are required for their production and subsequent preservation. Early Triassic deposits contain the highest number of fossil swim track occurrences worldwide compared to other epoch Read More
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Prehistoric High Times: Early Humans Used Magic Mushrooms, Opium

Posted by External 30 days ago General
http://feedproxy.google.com — Opium, "magic" mushrooms and other psychoactive substances have been used since prehistoric times by people all over the world, according to a new study. Read More
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Early Mesoamericans affected by climate change

Posted by External 36 days ago General
http://feeds.sciencedaily.com — Scientists have reconstructed the past climate for the region around Cantona, a large fortified city in highland Mexico, and found the population drastically declined in the past, at least in part because of climate change. Read More
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Iron toxicity for cyanobacteria delayed oxygen accumulation in early Earth's atmosphere

Posted by External 58 days ago General
http://feeds.sciencedaily.com — Geomicrobiologists say that the first oxygen-producing bacteria were poisoned by abundant iron in ancient oceans. Three billion years ago, Earth's atmosphere contained less than 0.0001 percent oxygen. Today's atmosphere has around 20 percent oxygen -- and that is due to the work of tiny microorganisms in Earth's primeval oceans. Read More
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