The clip was shot as part of a National Geographic documentary series that explored the secret lives of deep-sea creatures.

The octopus, an incredible marine species known for its intellect, excellent camouflage abilities, and complex behaviours, ...

Octopus blood is blue. The blue color comes from a copper-based protein called hemocyanin, which carries oxygen around octopuses' bodies. Our blood is red because we use an iron-based protein ...

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 ...

Animals with numerous hearts are a fascinating phenomena in the microscopic realm of biology. Amazing adaptations found in nature allow many species to flourish in their unique enviroments. Here are 8 ...

Octopuses are mysterious creatures of the animal kingdom, possessing unique qualities that make them stand out among ...

Octopuses are like aliens on Earth: three hearts, blue blood, and the ability to squeeze through a space the size of their eyeball; they can use tools, transform their bodies to mimic other ...

An octopus. In particular ... For starters, they have three hearts and blue blood. When feeling under threat, they squirt a cloud of ink and jet off in another direction. They have no bones.

There may be around 10 different species of blue-ringed octopus, though only four have been given scientific names. The greater blue-ringed octopus (Hapalochlaena lunulata) is about 12 centimetres ...

That's the reality for those unlucky enough to be bitten by a blue-ringed octopus. Initially its bite is painless. But quickly the fast-acting toxin goes to work, paralysing its target.