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HumansIn teeth, more cracks are better than one
Cracks in tooth enamel, called tufts, distribute force and shield a tooth from fracture, researchers report.
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LifeEarly land arthropods sported shells
Ancient ocean-dwelling arthropods may have worn shells to enable their transition to land.
By Sid Perkins -
AnimalsOh, he’s such a lab bird
Bold flycatchers may be more likely than shy birds to get trapped for lab studies.
By Susan Milius -
Science needs ace communicators and politicians
In February, Alice Huang became president-elect of the American Association for the Advancement of Science. The renowned virologist began her career at Harvard in 1971, eventually becoming director of the laboratories of infectious diseases at Children’s Hospital Boston.