The curious minds at What If imagine creating the next human species, exploring the ethical dilemmas, biology, and potential future of engineered evolution.

A new study suggests humans belong in an elite “league of monogamy,” ranking closer to beavers and meerkats than to ...

Archaeologists have found the oldest-known surviving examples of handheld wooden tools.

As Brazil’s Atlantic Forest shrinks, mosquitoes that once fed on many animal species appear to be shifting toward humans.

At some point in the deep past, humans may have come frighteningly close to disappearing altogether. Here’s what we know, ...

Excavations at an opencast mine in Greece have uncovered two wooden objects more than 400,000 years old that appear to have been fashioned as tools by an unknown species of ancient human ...

They've got a taste for human blood and they aren't backing down.

An L.A. Times reader writes that Trump and Health and Human Services Secretary Robert F. Kennedy Jr. 'are both equally ...

There are few things more joyful, if occasionally nerve-wracking, than having a pet in your home. And plenty of people agree.

For the first time, clumps of human cells called organoids were fully integrated with the brains of rats—and influenced their ...

Cro-Magnon was once thought to represent a distinct human species, but modern research shows this classification is outdated. The term originally described early European Homo sapiens, yet genetic and ...

Once mosquitoes acquire a new food source, they tend to develop a preference for that particular blood—and humans are one ...