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All Bears Are Brethren
April 24, 2017
The world-wide variations on bears could have come from one original type. It has been known that Alaskan brown bears can hybridize with polar bears. The resulting mixed breeds, sometimes called ‘pizzlies’ or ‘cappucino bears’, were thought to be rare. Now, in a surprising study from Senckenberg Research Institute and Natural History Museum, scientists have […]
Mighty Mitochondria Conduct Energy Exquisitely
October 7, 2011
None of us could live without mitochondria. These are the power centers ubiquitous in eukaryotic cells. They contain molecular machines in factories whose jobs are to generate and conduct electrical currents. The currents run turbines that packetize the energy in molecules of ATP, which are then used by most processes in the cell. New discoveries continue to fascinate scientists with how mitochondria work. Some scientists use their energy to find ways Darwinian evolution could build the machinery of life.
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