Have you ever seen a blue-ringed octopus while diving? 🐙 Despite their innocent appearance, they are among the most venomous marine species on the planet. 😳 📷 IG user 'kenzokiren' 📍Lembeh, Indonesia | PADI

Filmed this Blue Ring Octopus in Anilao Philippines. This tiny cephalopod has enough venom to kill 26 people. It is about the size of your thumb. It flashes its blue rings when it feels threatened. Once I shined my light on it, it started flashing. Such a cool animal! | OceanShutter