A €50 million octopus farm in the Canary Islands never opened. The reasons, and the growing list of bans that followed it, show how fast the science on octopus sentience has moved.

Researchers have published the first confirmed footage of a goblin shark alive in its deep-ocean habitat, captured near Jarvis Island and in the Tonga Trench.

A robotic survey of the southeastern Indian Ocean found 476 whale fossil sites and five living whale-fall ecosystems down to 7,001 meters, the deepest such habitats on record.