For most of our evolutionary history, human activity has been linked to daylight. Technology has liberated us from these ancient sleep-wake cycles, but there is evidence sunlight has left and ...

University of Ferrara researchers in Italy have examined how European skin, eye and hair pigmentation evolved over the past 45,000 years. Findings indicate that lighter pigmentation traits emerged ...

A review of published studies suggests that skin toxicities related to checkpoint inhibitors may be managed differently in ...

Hogfish can change their color in less than a second to blend in with their surroundings. Reinhard Dirscherl \ ullstein bild via Getty Images Like a chameleon, a hogfish can quickly change the color ...