Blue-ringed octopuses are undeniably stunning. When they are alarmed, these animals will show off the eponymous iridescent blue rings that cover their body and arms. But their adorably small size and ...

Blue-ringed octopus found at Callan Park in Sydney Animal is one of world's most deadly sea creatures READ MORE: Dad paralysed after octopus bite at Balmoral Beach A deadly blue-ringed has been ...

The blue ring octopus's poisonous ability is enough to make anyone wary of its existence, but what really makes it so deadly?

The animal is one of four species of the extremely venomous blue-ringed octopus and is known as a blue-lined octopus due to its non-circular markings. Blue-lined octopuses (Hapalochlaena fasciata ...