Thaís Pansani examines the marks humans left on megafauna bones to determine when people arrived in South America and how they interacted with giant mammals Chihiro Kai 14,000 years ago, an early ...

And so it has come to pass: Chinese scientists at the University in Guangzhou have created the first genetically modified human embryos. Although there had been rumors circulating for some time that ...

As near as paleontologists can tell, evolution has been proceeding apace for 3.5 billion years, give or take. From the emergence of the humble single-cell organism that served as the last universal ...