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 ...

Cephalopods have colour-changing chromatophores on their skin, which allows them to camouflage themselves — but the blue-ringed octopus has a different trick up its tentacle. Michelle Starr is ...

From neon-green poison dart frogs to monarch butterflies, some of nature’s flashiest creatures have evolved vibrant ways of telling potential predators: “don’t mess with me.” Such is the case with ...