The Sciences

What if the signature of living things is the lack of a simple signature?

Humanity’s most recent common ancestor and so-called genetic isopoint illustrate the surprising connections among our family trees

The disappearance of their predators in a disturbed ecosystem has turned Atlantic forest sloths from night creatures to day adventurers.

The coronavirus pandemic, climate change and space exploration are among the issues that Biden will influence if he wins the upcoming U.S. election

Now is the moment to act so that we never have to experience an authoritarian version of the U.S.

Small objects bob on either side of a levitating layer of water

If you lived in a desert, you’d probably want to live under a rock, too

Consider a few items of interest from our epically awful summer

We’ve never backed a presidential candidate in our 175-year history—until now

Decades-old specimens solve a long-standing mystery

A new method to measure corals’ heat tolerance on-site could speed up conservation efforts

Dancing, rowing and even finger tapping in unison unleash powerful forces in the brain that drive good feelings