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 could be easy to miss a blob the size of a golf ball. But its blue hue—the rarest color in nature—stood out against the sand, grabbing researchers’ attention. It wasn’t a blob but an adorable blue ...

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 ...