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 ...

Blood is synonymous with bright red or deep maroon, but it certainly doesn’t generally bring to mind shades of blue. But ...

Forbes contributors publish independent expert analyses and insights. I write about biodiversity and the hidden quirks of the natural world. Go diving into the intertidal waters of the Great Barrier ...

Being bitten by a strange animal can be extremely scary, especially since so many species use venom against their prey. One such animal is the blue-ringed octopus. While octopus venom is not typically ...

Octopus cyanea found in the both Indian and Pacific ocean. It grows to 16 cm in mantle length with arms to atleast 80 cm.© Amirkhans world/Shutterstock.com Octopuses have a few characteristics that ...

Add Yahoo as a preferred source to see more of our stories on Google. Photo Credit: iStock The tiny blue-ringed octopus may seem ordinary in the ocean, but its size can be quite deceiving, as it ...

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Blue-Ringed Octopus: A pocket-sized death machine, this tiny octopus has a deadly bite that can paralyze and kill a human within minutes. Poison Dart Frogs: Tiny but lethal, these brightly colored ...

A new blue octopus species, Microeledone galapagensis, was recently discovered near Darwin Island in northern Galápagos.