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www.newscientist.com | ||
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briantissot.com
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| | | | | Whales are the most marine of all creatures but were derived from land animals -- the walking whales. | |
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www.livescience.com
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| | | | | The American Museum of Natural History exhibit looks at how whales' ancestors left land behind for a lengthy dip in the oceans. | |
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www.scientificamerican.com
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| | | | | A new theory proposes methane-spurting single-celled organisms were behind the Permian extinctions | |
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www.leonarddavid.com
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| | | The U.S. Air Force's X-37B miniature space plane has winged past 340 days of flight performing secretive duties during the program's fifth flight. | ||