In a world where we seem to have less and less in common with our neighbors, it’s crucial to focus on what we share. So, here’s an easy one: We’re all human. But wait — what does that mean? Beyond the ...

When someone says the word embryo, what do you think of? Probably that picture you’ve seen a thousand times on a thousand different news articles: a translucent orb swelling with cytoplasm being ...

Scientists can now create realistic human embryo models in the lab, leading some to suggest that we rethink how we legally define an embryo. When you purchase through links on our site, we may earn an ...