Did you know?

… some jellyfish are bigger than a human and others are as small as a pinhead?
… people in some countries eat jellyfish?
… that jellyfish have been on Earth for millions of years, even before dinosaurs?
… jellyfish have no brain but some kinds have eyes?
… that jellyfish are mainly made up of water and protein?
… a group of jellyfish is called a smack?