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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898
(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 ...
(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 ...
(PhysOrg.com) -- Sometimes when people talk about solar energy, they tacitly assume that we're stuck with some version of the silicon solar cell and its technical and cost limitations. Not so.
Materials Science
Nov 29, 2011
1
0
When thunderstorms rumble overhead, weak electrical discharges—called corona—can occur on tree leaves. A new study found coronas create large amounts of atmospheric chemicals that could impact air quality around forests, ...
Environment
Oct 19, 2022
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33
A study by University of Adelaide researchers and Queensland Government scientists has revealed what south-east Queensland's rainfall was like over the last 7000 years – including several severe droughts worse and longer ...
Earth Sciences
Feb 15, 2019
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321
Frogs that raise their young in tiny pools of water that collect on plant leaves must make a delicate trade-off between the risk of drying out and the risk of being eaten, according to a study publishing December 5 in the ...
Plants & Animals
Dec 5, 2018
0
106
Observable effects of climate change that scientists had predicted in the past are now a reality: Glaciers are shrinking, plant and animal ranges have shifted and trees are flowering sooner.
Environment
Nov 20, 2018
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56
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
0
573
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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