National Aquarium - The greater blue-ringed octopus is only about 4 inches across, but it holds enough venom to kill as many as 26 people... within minutes. Look, but definitely don't touch.
![Blue Ring Octopus In Indonesia Stock Photo - Download Image Now - Octopus, Adventure, Animal - iStock Blue Ring Octopus In Indonesia Stock Photo - Download Image Now - Octopus, Adventure, Animal - iStock](https://media.istockphoto.com/id/1186528937/photo/blue-ring-octopus-in-indonesia.jpg?s=612x612&w=is&k=20&c=SlOBpp8c85ZC8MkZEb_gZI_tekGW_Ybl5dNjXn4KTDk=)
Blue Ring Octopus In Indonesia Stock Photo - Download Image Now - Octopus, Adventure, Animal - iStock
![greater blue-ringed octopus, Cabilao, Visayas, Philippines, Asia / (Hapalochlaena lunulata), Stock Photo, Picture And Rights Managed Image. Pic. RDC-633143 | agefotostock greater blue-ringed octopus, Cabilao, Visayas, Philippines, Asia / (Hapalochlaena lunulata), Stock Photo, Picture And Rights Managed Image. Pic. RDC-633143 | agefotostock](https://previews.agefotostock.com/previewimage/medibigoff/ec5a92aae8971011e7df13bc10b38ab3/rdc-633143.jpg)