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Social distancing in nature


Credit: Photo courtesy of Gerry Carter
Forager ants do it, vampire bats do it, guppies do it, and mandrills do it. Long before humans learned about and started social distancing due to COVID-19, animals in nature intuitively practiced social distancing when one of their own became sick.
Science, Dana Hawley, a professor of biological sciences in the Virginia Tech College of Science and colleagues from the University of Texas at Austin, University of Bristol, University of Texas at San Antonio, and University of Connecticut have highlighted just a few of the many non-human species that practice social distancing, as well as lessons learned from their methods to stop the spread of bacterial, viral, and parasitic infections. ....

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Fossil study: World's oldest fossil may have exposed how life recovered from Ice Age


Arrows in k denote associated larger spheres. (Image: Nature/Andrew Czaja)
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The new microfossil’s date seemingly supports the emerging idea some fungi-like organisms left the oceans for a life on land even before plants.
Some experts even suggest this swift adaptation might have been in some way responsible for catalysing Earth’s sudden recovery from such a tumultuous ice age.
Dr Tian Gan, Virginia Tech College of Science geobiologist, said: “If our interpretation is correct, it will be helpful for understanding the paleoclimate change and early life evolution.”
Fungi’s early evolution remains a major mystery in the field, largely because without bones or shells, these organisms do not fossilise easily. ....

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Researchers Find 635 Million-Year-Old Fungi-like Microfossil


Andrew Czaja of University of Cincinnati
When you think of fungi, what comes to mind may be a crucial ingredient in a recipe or their amazing ability to break down dead organic matter into vital nutrients. But new research by Shuhai Xiao, a professor of geosciences with the Virginia Tech College of Science, and Tian Gan, a visiting PhD student in the Xiao lab, highlights yet another important role that fungi have played throughout the Earth s history: helping the planet recover from an ice age.
A team of scientists from Virginia Tech, the Chinese Academy of Sciences, Guizhou Education University, and University of Cincinnati has discovered the remains of a fungi-like microfossil that emerged at the end of an ice age some 635 million years ago. It is the oldest terrestrial fossil ever found. To put it into perspective, this microfossil predates the oldest dinosaurs about three times over. ....

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Here's How a 635 Million-Year-Old Microfossil May Have Helped Thaw 'Snowball Earth'


31 JANUARY 2021
An international team of scientists in South China accidentally discovered the oldest terrestrial fossil ever found, about three times more ancient than the oldest known dinosaur.
 
Investigations are still ongoing and observations will need to be independently verified, but the international team argues the long thread-like fingers of this ancient organism look a lot like fungi.
Whatever it is, the eukaryote appears to have fossilised on land roughly 635 million years ago, just as Earth was recovering from a global ice age.
During this massive glaciation event, our planet resembled a big snowball, its oceans sealed from the Sun by more than a kilometre (0.6 miles) of solid ice. And then, in a geologic flash , our world began to inexplicably thaw, allowing life to thrive on land for the first time. ....

United States , Shuhai Xiao , Nature Communications , Virginia Tech College Of Science , South China , Tian Gan , Virginia Tech College , Democratic Republic , Doushantuo Formation , ஒன்றுபட்டது மாநிலங்களில் , இயற்கை தகவல்தொடர்புகள் , வர்ஜீனியா தொழில்நுட்பம் கல்லூரி ஆஃப் அறிவியல் , தெற்கு சீனா , டியாந் கண் , வர்ஜீனியா தொழில்நுட்பம் கல்லூரி , ஜனநாயக குடியரசு ,