Even though there are 8 billion people on Earth today, a catastrophe could send that number much lower within a few decades. When you purchase through links on our site, we may earn an affiliate ...

‘Overpopulation’ is a scary word, bringing to mind a dystopian Earth where people live in grimy cities and fight over what little food is left. But the reverse of this is just as terrifying – ...

Scientists have created human eggs containing genes from adult skin cells, a step that someday could help women who are infertile or gay couples have babies with their own genes but would also raise ...

Off a quiet hallway on the top floor of a building at the University of Osaka in Japan, Katsuhiko Hayashi is hatching a revolution. Human embryo science: can the world’s regulators keep pace? He is on ...

A new study suggests humans belong in an elite “league of monogamy,” ranking closer to beavers and meerkats than to ...

Michael A. Little does not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and has disclosed no relevant affiliations beyond ...