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How some leaves got fat: It's the veins

A "garden variety" leaf is a broad, flat structure, but if the garden happens to be somewhere arid, it probably includes succulent plants with plump leaves full of precious water. Fat leaves did not emerge in the plant world ...

dateApr 11, 2013 in Plants & Animals
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Putting the clock in 'cock-a-doodle-doo'

Of course, roosters crow with the dawn. But are they simply reacting to the environment, or do they really know what time of day it is? Researchers reporting on March 18 in Current Biology have evidence that puts the clock ...

dateMar 18, 2013 in Plants & Animals
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