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PaleontologyOld 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.
By Sid Perkins -
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.
By Peter Weiss -
Health & MedicineBrave 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.