In this macabre shot, a handful of shrimp feed on the dead body of a female octopus who (evidently) laid her eggs, stopped eating, and died.
The hectocotylus is both a reproductive and sensory organ, Harvard scientists and others have found.
Marine scientists in New Zealand have documented the world's weirdest road trip pairing.
The cephalopods team up with a variety of fish for hunting, and that results in some complex relationship dynamics that can include violence.
A recent expedition to the waters of Costa Rica has yielded new discoveries about deep sea octopuses.
Photo: Schmidt Ocean Institute 
