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Oldest Large Body of Ancient Seawater Identified Under Chesapeake Bay

Oldest Large Body of Ancient Seawater Identified Under Chesapeake Bay
USGS scientists have determined that high-salinity groundwater found more than 1,000 meters (0.6 mi.) deep under the Chesapeake Bay is actually remnant water from the Early Cretaceous North Atlantic Sea and is probably 100-145 million years old. This is the oldest sizeable body of seawater to be identified worldwide. Twice as salty as modern seawater,…
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Neanderthal Viruses Found in Modern Humans

Neanderthal Viruses Found in Modern Humans
Ancient viruses from Neanderthals have been found in modern human DNA by researchers at Oxford University and Plymouth University. The researchers compared genetic data from fossils of Neanderthals and another group of ancient human ancestors called Denisovans to data from modern-day cancer patients. They found evidence of Neanderthal and Denisovan viruses in the modern human…
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Origin of Species: Protein Imbalances Doom Hybrids

Origin of Species: Protein Imbalances Doom Hybrids
Why do crosses between closely related species fail to produce fertile hybrids? A new study led by Professor Axel Imhof of Ludwig-Maximilians-Universitaet (LMU) in Munich shows that differences in the levels - not necessarily the sequences - of certain key proteins are crucial in mediating reproductive isolation. Two individuals are defined as belonging to the…
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Ancient, Modern DNA Tell Story of First Humans in the Americas

Ancient, Modern DNA Tell Story of First Humans in the Americas
University of Illinois anthropology professor Ripan Malhi looks to DNA to tell the story of how ancient humans first came to the Americas and what happened to them once they were here. He will share some of his findings at the meeting, "Ancient DNA: The First Three Decades," at The Royal Society in London on…
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Evidence of 3.5-Billion-Year-Old Bacterial Ecosystems Found in Australia

Evidence of 3.5-Billion-Year-Old Bacterial Ecosystems Found in Australia
Reconstructing the rise of life during the period of Earth's history when it first evolved is challenging. Earth's oldest sedimentary rocks are not only rare, but also almost always altered by hydrothermal and tectonic activity. A new study from a team including Carnegie's Nora Noffke, a visiting investigator, and Robert Hazen revealed the well-preserved remnants…
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How climate change will affect the Southeast US

How climate change will affect the Southeast US
Rising sea levels, warming temperatures, heat waves, worsening air quality and stresses on the water supply are issues the Southeast will face over the next 20 years because of man-made climate change, according to a report released Tuesday. "The Southeast is a key part of the problem," said Keith Ingram, director of the Southeast Climate…
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Injured sea turtle treated at Miami Seaquarium

Injured sea turtle treated at Miami Seaquarium
A threatened sea turtle is being treated for a life-threatening gash to its shell after apparently being struck by a boat in South Florida, officials said Tuesday. A Miami homeowner spotted the lethargic, injured loggerhead turtle Monday in a canal that leads into Biscayne Bay, said Florida Fish and Wildlife Conservation Commission spokesman Jorge Pino.…
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Climate science making inroads

Climate science making inroads
Nicholas Ogle stands at the water’s edge on Florida International University’s Biscayne Bay campus and holds what looks like a giant, rotten green bean out to the crowd of teenagers in front of him. “We don’t want any mushiness anywhere, especially at the top,” he says, and chucks the specimen to the side. Ogle, an…
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Rare New Microbe Found in Two Spacecraft Clean Rooms

Rare New Microbe Found in Two Spacecraft Clean Rooms
A rare, recently discovered microbe that survives on very little to eat has been found in two places on Earth: spacecraft clean rooms in Florida and South America. Microbiologists often do thorough surveys of bacteria and other microbes in spacecraft clean rooms. Fewer microbes live there than in almost any other environment on Earth, but…
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