Is jellyfish intelligence a superpower? They do not have any brains. But scientists think that jellies might be much more clever than we think.
Behold the misunderstood genius of the sea
Spineless: Sea jellies are not fish but plankton that drift on the ocean currents. Glossary
Power plants - Power stations, where electricity is generated for people to use.
Avoid - Keep away from something.
Species - A set of animals or plants with similar features. Members of the same species can breed with each other.
Immortal - Lives forever.
Venomous - Poisonous.
Prey - Animals hunted and eaten by others.