The octopus, an incredible marine species known for its intellect, excellent camouflage abilities, and complex behaviours, has a distinct physiological trait: blue blood. This interesting ...

Finally, why do octopuses have blue blood? Are you still wondering why octopus blood is blue and what the three hearts do? Well, the blue blood is because the protein, haemocyanin, which carries ...

The octopus has three hearts, which help it survive in deep waters. Two pump blood to the gills, while the third circulates ...

The suckers are also packed with sensory receptors that allow the octopus to taste and smell things that they touch—like combining a hand with a tongue and a nose. The researchers believe the ...

Octopuses have a large nervous system, with the average octopus having about 500 million neurons or brain cells. That puts it in the same “brain range” as smaller mammals such as dogs.

Octopus arms are the ultimate multitaskers, bending, twisting, and curling with an impressive range of motion that would make a yoga instructor envious.