Experts raise concerns over superhuman workplace

Performance-boosting drugs, powered prostheses and wearable computers are coming to an office near you—but experts warned in a new report Wednesday that too little thought has been given to the implications of a superhuman ...

Northern conifers youngest of the species

Dramatic shifts in the planet's climate and geography over millions of years changed the course of evolutionary history for conifer trees, according to a Yale paper in the Proceedings of the National Academy of Sciences.

Keeping time: Circadian clocks

Our planet was revolving on its axis, turning night into day every 24 hours, for 4.5 billion years - long before any form of life existed here. About a billion years later, the very first simple bacterial cells came into ...

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