In some ways a cell in your body or an organelle in that cell is like an ancient walled town. Life inside either depends critically on the intelligence of the gatekeepers.
Cell & Microbiology
Dec 17, 2009
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A new analysis of the remains of a Tyrannosaurus rex (T. rex) that roamed Earth 68 million years ago has confirmed traces of protein from blood and bone, tendons, or cartilage. The findings, scheduled for publication in the ...
Materials Science
Jul 29, 2009
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In a first-of-its-kind discovery that overturns conventional wisdom, scientists in Florida are reporting that certain plants — including the exotic “White Bird of Paradise Tree” -- make bilirubin. Until now, scientists ...
Biochemistry
Mar 11, 2009
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