When scientists dropped a video camera to the seafloor off Rotuma in the South Pacific Ocean, they filmed an octopus lashing out at a grouper.

Equally mysterious and beautiful, octopuses are captivating creatures. There are over 300 octopus species, and they thrive in every ocean habitat. Their soft bodies can rapidly change shape, allowing ...

Forbes contributors publish independent expert analyses and insights. I write about biodiversity and the hidden quirks of the natural world. Go diving into the intertidal waters of the Great Barrier ...

Octopuses may have big brains because of environmental – not social – factors. Large brains in mammals are generally thought to be linked to social behaviour, an idea known as the social brain ...

It’s not every day that scientists discover a new species of octopus, but that is exactly what has happened off the coast of western Australia. During a CSIRO research expedition to the Carnarvon ...