An curved arrow pointing right. On a recent expedition in the Mariana Trench, NOAA's Okeanos Explorer team spotted this sea cucumber and the unique way it swims. Produced by Grace Raver Footage ...

Researchers inside a deep-sea vehicle collected sea cucumbers from the seafloor, then discovered two new species. Jong Marshes via Unsplash Off the western coast of Australia, the Wallaby-Zenith ...