A pair of California sea lions nuzzles on a dock in San Francisco. Between 1998 and 2017, nearly 700 California sea lions were found with gunshot and stab wounds in California, Oregon and Washington.
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American biologist David Baltimore criticized a fellow scientist who claims he has edited the genes human embryos during the Second International Summit on Human Genome Editing at the University of Hong Kong.
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Tianjin, in northern China, is home to Tianjin University, an international research center that recently hired an American to lead its school of pharmaceutical science and technology. He recruits students from all over the world, he says, and the program's classes are taught in English.
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Thomas Jefferson owned hundreds of slaves, yet he also wrote that "all men are created equal." How did he square the contradictions between his values and his everyday life?