Answer:
The blue-ringed octopus is one of the most venomous aquatic creatures in the world, setting it apart from other animals. It is capable of paralyzing and killing its prey and predators, including humans, with the powerful neurotoxin it carries called tetrodotoxin when provoked or under danger. The blue-ringed octopus is a recognizable and possibly hazardous marine animal due to its vivid blue rings that emerge when it is threatened.