Octopuses Have Learned to Make Use of Ocean Litter, Study Finds

Typography

Whether it’s mimicking venomous creatures, or shooting jets of water at aquarium light switches to turn them off, octopuses are nothing if not resourceful. 

Whether it’s mimicking venomous creatures, or shooting jets of water at aquarium light switches to turn them off, octopuses are nothing if not resourceful. Now, an analysis of underwater images suggests octopuses are increasingly using discarded bottles, cans, and other human rubbish as shelter or as a sanctuary for their eggs.

The study — the first to systematically evaluate and characterize litter use by octopuses using crowdsourced images — analyzed hundreds of underwater photos posted on social media platforms and image databases or collected by marine biologists and diving interest groups.

The research, published in Marine Pollution Bulletin, documented 24 species of octopus sheltering inside glass bottles, cans, and even an old battery; burying themselves under a mixture of bottle tops and seashells; even carrying plastic items around while “stilt-walking” on two tentacles to conceal themselves from predators.

Read more at Yale Environment 360

Image: An octopus sheltering in a broken glass bottle. (Photo Credit: John Paul Meillon)