Cabbage Head/Cannonball Jellyfish - An interesting fact about jellyfish is that they're not fish. Instead, they are invertebrate marine animals with dome-shaped bodies. They don't have a backbone

Stock photo: Cabbage Head/Cannonball Jellyfish - An interesting fact about jellyfish is that they're not fish. Instead, they are invertebrate marine animals with dome-shaped bodies. They don't have a backbone was taken by simmons48 .