Recent Posts by Pangaea Biosciences

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

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

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

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

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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Amazon Deforestation Could Mean Droughts for Western U.S.

In research meant to highlight how the destruction of the Amazon rainforest could affect climate elsewhere, Princeton University-led researchers report that the total deforestation of the Amazon may significantly reduce rain and snowfall in the western United States, resulting in water and food shortages, and a greater risk of forest fires The researchers report in…
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Tricking Algae’s Biological Clock Boosts Production of Drugs, Biofuels

Tricking algae's biological clock to remain in its daytime setting can dramatically boost the amount of valuable compounds that these simple marine plants can produce when they are grown in constant light. That is the conclusion of a "proof of concept" experiment described in the Dec. 2 issue of the journal Current Biology. The study found…
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Scientists Solve Major Piece in the Origin of Biological Complexity

Scientists have puzzled for centuries over how and why multicellular organisms evolved the almost universal trait of using single cells, such as eggs and sperm, to reproduce. Now researchers led by University of Minnesota College of Biological Sciences postdoctoral fellow William Ratcliff and associate professor Michael Travisano have set a big piece of that puzzle…
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Did Inefficient Cellular Machinery Evolve to Fight Viruses and Jumping Genes?

It might seem obvious that humans are elegant and sophisticated beings in comparison to lowly bacteria, but when it comes to genes, a UC San Francisco scientist wants to turn conventional wisdom about human and bacterial evolution on its head. Far from being sleekly performing and fine-tuned athletes, the molecules guiding the activity of our…
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