Lembeh, Sulawesi, Indonesia Info from Licensor: "Blue ring octopus is a small octopus only a few centimeters long. Normally earth-colored, it turns yellow when excited, and a blue ring appears. It is ...

There may be around 10 different species of blue-ringed octopus, though only four have been given scientific names. The greater blue-ringed octopus (Hapalochlaena lunulata) is about 12 centimetres ...