The octopus is one of the world’s most alien creatures, but nothing puts that into perspective more than the physiological differences between them and the creatures we’re most familiar with. Like ...

Octopuses, notable for their intelligence and behavior, have blue blood due to hemocyanin which helps in oxygen transport in ...

If the blood (called haemolymph in invertebrates) becomes deoxygenated – when the animal dies, for example – it loses its blue colour and turns clear instead. An octopus’s three hearts have slightly ...

Antarctic Octopus's 'Blue Blood' Helps It Survive in Frigid Waters. News. By Shannon Hall last updated 14 October 2022 When you purchase through links on our site, we may earn an affiliate commission.

Phoebe Waller-Bridge narrates a new Amazon Prime Video two-part documentary special called "Octopus!", which explores the quirks of octopuses and premieres on May 8 ...

Male blue-lined octopuses inject a powerful neurotoxin into the hearts of females before mating to avoid being eaten, according to a new study.

Nine arms, no problem. In 2021, researchers from the Institute of Marine Research in Spain used an underwater camera to follow a male Octopus vulgaris, or common octopus. On its left side, three ...