With blue blood and three hearts, the octopus has one of the most unusual circulatory systems in the animal kingdom.

The blue-ringed octopus may be tiny, but its venom is deadly. A video of a man holding this world's venomous animal goes ...

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 ...

In fact, some creatures have blood that's blue, green, or even clear! It's fascinating to think about how different life can be across the animal kingdom. Let's take a friendly journey together to ...

The Bailey-Matthews National Shell Museum & Aquarium on Sanibel reported that it has opened two new exhibitions for the 2026 ...