PhysOrg: Dartmouth plant biologist C. Robertson (Rob) McClung is not your typical clock-watcher. His clocks are internal, biological, and operate in circadian rhythms-cycles based on a 24-hour period. Living organisms depend upon these clocks to keep pace with the Earth's daily rotation and the recurring changes it imposes on the environment. These clocks allow the plant or animal to anticipate the changes and adapt to them by modifying its biology, behavior, and biochemistry. "If you know that the sun...
URL: http://phys.org/news/2012-11-clocks-climate.html
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