Add Yahoo as a preferred source to see more of our stories on Google. Researchers have captured the very first real-time, three-dimensional images and videos of a human embryo implanting into collagen ...

"If reproduction is ever to occur beyond Earth, it must do so with a clear commitment to safety, transparency and ethical integrity." When you purchase through links on our site, we may earn an ...

For decades, scientists, policymakers, graziers and land managers have been locked in a surprisingly high-stakes debate over what defines a dingo. Are these wild canids their own species? Or are they ...