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Blue-ringed Octopus — printable fact sheet
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Animal Fact Sheet
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Blue-ringed Octopus
Hapalochlaena lunulata
The Blue-ringed Octopus is a small but highly venomous marine animal found in tide pools and coral reefs in the Pacific and Indian Oceans. Despite its diminutive size, this octopus is easily recognized by its vibrant blue and black rings that appear more vivid when threatened. I…
Did you know?
- The venom of the Blue-ringed Octopus contains tetrodotoxin, a neurotoxin for which there is currently no known antidote.
- Despite their small size, blue-ringed octopuses carry enough venom to kill 20 adult humans. Their blue rings only glow vibrantly when they feel threatened, serving as a warning signal. Unlike many octopus species, they do not inject ink to escape predators but rely on their potent toxin and warning coloration.
What I learned
Draw the blue-ringed octopus
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