The fish use an enzyme to turn their eyes into night-vision goggles, but that's nothing compared to what bullfrogs do.

Do you feel something less strongly if you don’t have a word for it?

Astronauts get burns, cuts, and scrapes too.

Where tiny aquatic creatures congregate to find their mates

By studying twisting snails, scientists have identified the earliest molecules that make us asymmetrical.

Is it because half our brain is staying up to keep watch?

Certain gut bacteria have evolved in parallel with apes, so that their family tree perfectly mirrors our own.

It’s enchanting to think that everything—from atoms to rocks to trees—is conscious, but it doesn’t explain much about the world.

The oozing yellow organism has no neurons, but it can solve mazes, make decisions, and learn by merging together.

Here is one matter, at least, in which the Swiss refuse to be neutral.