One of the most diverse ecosystems on the planet is closer than you think—right inside your mouth. Your mouth is a thriving ecosystem of more than 500 different species of bacteria living in distinct, ...

Researchers should urgently think about how humans can reproduce in space, experts have said. As humanity looks towards living beyond Earth, we need to understand how human reproduction will actually ...

For all the ambition packed into humanity's plans for Mars colonies, lunar bases, and permanent off-world settlements, one fundamental question has quietly gone unanswered: can humans actually ...

A University of Michigan-led study based on a review of genetic and health information from more than 276,000 people finds strong support for a decades-old evolutionary theory that sought to explain ...

Add Yahoo as a preferred source to see more of our stories on Google. A T-shaped space station floats above Earth. Researchers have successfully grown mouse embryos aboard the International Space ...

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 ...