Natural selection uses duplicated genes as raw material for functional innovation, co-opting their existing features to new functions. Understanding genetic innovation requires two questions to be ...

This is read by an automated voice. Please report any issues or inconsistencies here. Five Senate Republicans voted with Democrats to rein Trump’s war powers as foreign policy goals remain vague. GOP ...

The only letter I’ve ever sent to the New York Times was in the 1980s, objecting to the paper’s suddenly pestilent use of “draconian.” During Iran–Contra the complaint must have seemed trivial; the ...

Arno Kroner, DAOM, LAc, operates a private practice in Santa Monica where he specializes in acupuncture, herbal medicine, and integrative medicine. You can burn more fat by making adjustments to your ...