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 ...

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 ...

The blue-lined octopus (Hapalochlaena fasciata) is only a few centimeters long, yet it may be one of the most dangerous marine animals on Earth. That's because, as part of the blue-ringed octopus ...

A team of scientists working off the coast of Costa Rica have identified four previously unknown deep-sea octopus species in the vicinity of hydrothermal springs on the ocean floor. They also ...