As much as we would like to, we don't have all the answers.

New research suggests that long-standing assumptions about sex and gender continue to shape how studies are designed, interpreted, and reported.

Microplastics are often named as a major polluter of both the planet and our bodies, but what does the actual science say?

You don't have to be a genius: anemones have been using human genes to form their bodies for 600 million years.

Rachel Feltman: For Scientific American’s Science Quickly, I’m Rachel Feltman. Humans have been trying to replace ailing parts of our bodies for thousands of years, turning to prosthetic limbs, ...