If you are silly about squid or just daft for amazing animals of the deep, dive in for a fact-packed illustrated journey into the ocean.

Did you know that an octopus has three hearts and a doughnut-shaped brain?

You'll discover that these incredible creatures are super-smart and have great survival skills.

From the truly terrifying giant Pacific octopus to the inventive common octopus, find out where members of this eight-armed family live, what they eat and how we can protect them.