Watch penguins hunting from their point of view.

The companies that market the products, Syngenta, Valent, and Bayer, are allowed to sell existing stock of the chemicals until 2020.

See a mouse organoid imaged using two-photon microscopy.

Biologists recover the bodies of puffins from a mass mortality event.

Emails reveal that a facility in Dubai and others have asked geneticist He Jiankui for help in gene-editing embryos.

A fossil of a school of fish from the Eocene appears to represent coordinated collective movement.

Watch young birds move like rock climbers.

A video captures T cells learning to recognize cells from the body that shouldn’t be attacked.

Watch a Munk’s devil ray breach.

Paleontologists find microscopic fungi in Arctic Canada that is reported to be about twice as old as the previously oldest known fossils of fungi.

Structures built in tropical coastal waters capture fish, but harm the ecosystem and may lead to overfishing.

Paleontologists find tracks from a four-footed animal thought to be of an Ichniotherium species in the Grand Canyon.