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Mr. Universe Jr.: Child’s gene mutation confirms protein’s role in human-muscle growth
A boy born with extra-large muscles has mutations in a gene regulating muscle growth.
By John Travis -
Health & MedicineCancer with a Twist: Protein instrumental in breast-cancer metastasis
A protein called Twist, which orchestrates gene activity in cells, facilitates the spread of some breast cancers.
By Nathan Seppa -
AnthropologyStone Age Ear for Speech: Ancient finds sound off on roots of language
Ancestors of Neandertals that lived at least 350,000 years ago heard the same range of sounds that people today do, suggesting that the ability to speak arose early in the Stone Age.
By Bruce Bower -
PhysicsMisbehavin’ Meson: Perplexing particle flouts the rules
The discovery of what appears to be a new subatomic particle with bizarre properties is challenging theorists' understanding of how matter behaves.