News
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Glowing Trio under the Sea: Nitrogen fixer joins algae inside coral
A coral that fluoresces orange appears to be the first ever found to contain a symbiotic microbe that converts nitrogen into a biologically useful form.
By Susan Milius -
PaleontologyGrowth Spurt: Teenage tyrannosaurs packed on the pounds
Detailed analyses of tyrannosaur fossils suggest that the creatures experienced an extended growth spurt during adolescence.
By Sid Perkins -
Health & MedicineOld-fashioned circumcision can spread herpes
Boys whose ritual circumcisions involve an ancient, and now rare, practice may acquire herpes during the operation.
By Ben Harder -
Health & MedicineSevere sweating treated with Botox
A new treatment has been approved for excessive sweating, or hyperhidrosis, which is surprisingly common.