This unassuming octopus pairs bacterial chemistry with evolutionary efficiency to deliver one of the most powerful defenses in all of the ocean.

As an octopus biologist, I get a call from the media every summer because someone has had an encounter with a blue-ringed octopus. Thankfully, everyone has been OK. Blue-ringed octopus are famed for ...

Among the ocean's most dangerous creatures, size isn't everything; in fact, some of the smallest marine animals are among the most dangerous. For example, the blue-ringed octopus has an extremely ...

Aquatic Animals Mystery of golden orb found in depths of ocean off Alaska finally solved: 'Everyone was like, What the heck? What is that?' Rivers & Oceans Glowing ring of plankton surrounding New ...