Few animals in the ocean look, move or function quite like the octopus, a soft-bodied invertebrate whose internal machinery is almost as strange as its shape-shifting exterior. Beneath that boneless, ...

Octopuses have blue blood, three hearts and a doughnut-shaped brain. But these aren’t even the most unusual things about them! Known for their otherworldly look and remarkable intelligence, octopuses ...

This article was published in Scientific American’s former blog network and reflects the views of the author, not necessarily those of Scientific American Octopuses' oddities run deep—right down to ...

Add Yahoo as a preferred source to see more of our stories on Google. Octopus cyanea found in the both Indian and Pacific ocean. It grows to 16 cm in mantle length with arms to atleast 80 cm.© ...

Did you know octopuses are highly intelligent animals with the ability to problem-solve complex puzzles – and even change color? They have three hearts and blue blood, helping them survive in deep ...