A mother octopus broods her eggs near a small outcrop of rock unofficially called El Dorado Hill. When a female octopus broods (which can be a timespan of multiple years), she does not eat and dies ...

An Octopus cyanea hunts with a blacktip grouper on one side and a blue goatfish on the other. Octopuses don’t always hunt alone — but their partners aren’t who you’d expect. A new study shows that ...

On certain remote shores in northern Australia, the line between sea and land is not as firm as it looks. When the tide ...

Deep-sea creatures often look more like science fiction monsters than marine animals. The glass octopus is one such animal. The Schmidt Ocean Institute captured this footage of the incredibly rare ...

At first glance, this small octopus appears harmless, even endearing. Beneath that appearance lies a biological defense ...

Scientists have discovered at least four new species of octopus in the deep waters of a 100-square-mile area near Costa Rica, officials from the Schmidt Ocean Institute said on Tuesday. An ...

Octopuses don’t always hunt alone — but their partners aren’t who you’d expect. A new study shows that some members of the species Octopus cyanea maraud around the seafloor in hunting groups with fish ...

This octopus behavior might look funny at first glance, but it reveals how evolution solves complex problems in unexpected ways.

Octopuses break so many biological expectations that scientists still struggle to explain how they ended up this way through ...

Watching an octopus punch an annoying fish is hugely satisfying to frustrated humans. And other animals do the ...