Earth's Wobbles Blamed for Mammals' Deaths Los Angeles Times - Wobbles or variations in the Earth's orbit and tilt are associated with extinctions of rodent and mammalian species, Dutch scientists reported Wednesday in the journal Nature.

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AP - Researchers on Thursday announced the discovery of the remains of a short-necked plesiosaur, a prehistoric marine reptile the size of a bus, that they believe is the first complete skeleton ever found.