Octopuses are perhaps the most unusual creatures to have ever inhabited the ocean. Their soft body, eight arms, and high ...

The blue ring octopus is a small animal with a lethal secret. Though small, this poisonous creature carries a powerful toxin ...

The ocean is still one of the biggest mysteries on Earth, and the deeper you go, the stranger it gets. Far below the surface, ...

Forbes contributors publish independent expert analyses and insights. I write about biodiversity and the hidden quirks of the natural world. Blue blood may look alien, but it’s one of evolution’s most ...

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 ...

The EyeRIS camera system collects 3D visual data in near real time about the structure and biomechanics of marine life. Filming pearl octopuses (Muusoctopus robustus) with this system has provided a ...

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.

This octopus can brood its eggs for nearly four years without eating. Here’s how this biological extreme has reshaped how ...

Octopuses in the Red Sea often hunt together with other predatory fish—and sometimes hit them. New videos suggest they're keeping fish in line. Day octopuses in the Red Sea team up with up fish to ...