We just learned a little about the Octopus.
There is an animal in the water called the electric eel that can shock you with real electricity!
Their shock is five times stronger than if you got electrocuted from a plug in your house!
(from: wikipedia - eletric eel)
Even though it's called an electric eel, it's really a type of fish called a knifefish and not actually a type of eel.
Electric eels have sodium and potassium chemicals in their body that store up electricity, almost like a battery, or like a static shock before you zap someone.
When they are ready to zap their enemy, they mix up another chemical in their body that causes the electricity to zap whoever is close enough or touching them.
Kid Facts - Blast from the past: Cheetah