Scientists have found smallpox viruses in the remains of people in Chile from around 500 years ago, revealing how the virus may have evolved into a global killer.

Inspired by the physical feats of diving birds, researchers have created a robot that can plunge into the water and flap back into the air.

With machine learning and a high-resolution imaging robot, scientists measured and mapped the extent of Earth’s carbon circulatory system.

For millions of years, male great bowerbirds have wooed their mates with flowers and seeds. But in today’s urban world, such humble fare may not cut it.