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  1. Paleontology

    New Fossils Resolve Whale’s Origin

    The first discovery of early whale fossils with key ankle bones intact provides compelling paleontological evidence that whales are closely related to many living ungulates, a relationship already supported by molecular data.

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  2. 18974

    Regarding “Constipation might signal Parkinson’s,” did anyone consider that the patients’ diet might be the reason for constipation and the Parkinson’s disease? Your article reads as if diet can’t affect constipation. Mark Bremer Benicia, Calif.The researchers accounted for smoking, coffee consumption, laxative use, jogging, and intake of fruits, vegetables, and grains. –N. Seppa

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  3. Health & Medicine

    Constipation might signal Parkinson’s

    Men who are constipated are more likely to develop Parkinson's disease than men who are not.