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  1. Paleontology

    Old Frilly Face: Triceratops’ relative fills fossil-record gap

    Fossils of a creature the size of a Texas jackrabbit cast new light on the early evolution of a group of horned dinosaurs that include the 8-meter-long Triceratops.

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  2. Microbes Fire an Oozie: Slime engines may push bacteria along

    Some bacteria may propel themselves with slime engines: clusters of nozzles at the ends of the microbes that exude viscous goop.

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  3. Health & Medicine

    Brave New Drug: Compound stops cowpox and smallpox viruses

    A new drug called HDP-CDV stops smallpox virus from replicating in lab tests and cowpox virus from replicating in mice, suggesting it could work as a treatment for smallpox in people.