Rare photo of octopus hitching a ride on dolphin

A volunteer off Berry Head captured images of an octopus appearing to grip the fin of a Risso's dolphin off the UK's southwest coast, offering researchers a rare glimpse into how these marine predators are responding to shifting prey availability as warming waters bring an unprecedented octopus bloom—the largest such surge in at least 75 years.

The image captures a single sighting; it illustrates changing predator-prey dynamics rather than proving a permanent behaviour shift.