We just learned about the Hawaiian Bobtail Squid.
Another type of cephalopod is the Blue Ringed Octopus.
This type of octopus is very small, only about 4 to 8 inches wide even including its arms.
Their body is yellow, with glowing blue circles on it.
This is nature's way of warning everyone to stay back because they are very poisonous, and deadly to humans!
If they bite a person, they have a type of neurotoxin poison that attacks the nerves in the body and make it so they can't move any muscles.
(from: wikipedia - blue ringed octopus)
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