Add Yahoo as a preferred source to see more of our stories on Google. Scientists reveal potential hurdles for extraterrestrial human reproduction. Here, sunlight illuminates the lower right of planet ...

Human aging is not what natural selection failed to prevent. It is what happens when selection simply has nothing left to act ...

New technologies could reimagine baby-making as we know it. But will they actually replace tried-and-tested (and enjoyable) ...

Alumna, author and machine learning expert Vivienne Ming explains why the best defense against AI's downsides is investing in ...

As a quartet of astronauts make their way to the far side of the Moon, far-fetched notions of human colonies on the satellite or even Mars - a three-year return trip - are again getting an airing.

A massive study of ancient DNA from nearly 16,000 people across more than 10,000 years in West Eurasia reveals that natural ...

For example, right before females ovulate — when estrogen reaches its peak — they tend to be more physically active. The ...

Most human pregnancies result in one baby because hormone feedback quickly limits egg selection, a new study explains.

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In Focus delivers deeper coverage of the political, cultural, and ideological issues shaping America. Published daily by ...

Threats, Recovery Stories, and How We Can Help Across the globe, endangered species face a web of threats that undermine ecosystems and the services they provide. This piece explains the main ...

New technologies of reproduction are plundering the art world – and getting away with it ...