Search

Why hasn’t evolution weeded out all the weird accidents and leftovers on plants and animals?

Trillions of tiny organisms—microbes—are all over, and inside, each of our bodies.

What is it about the human brain that gives us the edge?

Why does eating too much food make us feel ill? And where does all that food go?

Many of the medical advances we take for granted would be impossible without antibiotics.

What would it really be like to live on Mars?

Rising ocean temperatures may push coral reefs to their limits.

Kissing can sometimes lead to heartbreak, but did you know it can also be hazardous to your health?

Stem cells replenish our bodies and provide hope for new regenerative medicines.