In 2013, an ASU research team found the oldest known evidence of our own genus, Homo, at Ledi-Geraru in the lower Awash Valley of Ethiopia. A jawbone with teeth was dated to 2.8 million years ago, about 400,000 years earlier ...
Archaeology
May 15, 2017
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(Phys.org)—A team of researchers in the U.S. has found that our early human ancestors expanded their diet to include savannah grasses and other food sources approximately a quarter of a million years earlier than had been ...
Chemical changes that occur in tree leaves after being attacked by insects and mammals can impact nearby streams, which rely on fallen plant material as a food source, report scientists from the University of Chicago Department ...
Ecology
Mar 17, 2015
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Human skin and gut microbes influence processes from digestion to disease resistance. Despite the fact that tropical forests are the most biodiverse terrestrial ecosystems on the planet, more is known about belly-button bacteria ...
Ecology
Sep 15, 2014
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(Phys.org) —A trio of researchers has found that glassfrogs (Hyalinobatrachium fleischmanni) tend to hatch early if their male parent doesn't keep them hydrated. In their paper published in Proceedings of the Royal Society ...
Imagine a creature so slothful that it snacks off its own fur and budges only once a week for a bowel movement.
Plants & Animals
Jan 22, 2014
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Air pollution is related to forest decline and also appears to attack the protecting wax on tree leaves and needles. Bonn University scientists have now discovered a responsible mechanism: particulate matter salt compounds ...
Environment
Jun 19, 2013
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The loss of eastern hemlock from forests in the Southern Appalachian region of the United States could permanently change the area's hydrologic cycle, reports a new study by U.S. Forest Service scientists at the Coweeta Hydrologic ...
Ecology
May 9, 2013
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Archaeologists studying a small site at Peru's main sports center have dug up eight skeletons dating from at least 700 years ago and three others twice that old.
Archaeology
Feb 27, 2013
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Location matters for birds on the hunt for caterpillars, according to researchers at UC Irvine and Wesleyan University. Findings suggest that chickadees and others zero in on the type of tree as much as the characteristics ...
Plants & Animals
Jan 26, 2012
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