Octopuses have gotten a reputation for being cunning camouflagers and intelligent creatures. But some are known for a more ominous reason: They're deadly. One group — the blue-ringed octopus (genus ...

This unassuming octopus pairs bacterial chemistry with evolutionary efficiency to deliver one of the most powerful defenses in all of the ocean. The blue-ringed octopus (genus Hapalochlaena) is small ...

A lucky diver managed to capture the rare sight of a mother blue-ringed octopus with her eggs in Port Phillip Bay, Victoria.

Octopuses are some of the most amazing creatures of the ocean. They are smart, flexible, and can change colour to hide from their predators. While many octopuses are small, some species can grow to ...