• Key Information
  • Jellyfish

  • Species
    More than 2,000
  • Classification
    Cnidaria > Medusozoa
  • Conservation Status
    Various
  • Length
    Less than 0.1 in to over 6 ft
  • Weight
    Up to 440 lb
  • Habitat
    Most Seas and Oceans
  • Learning Point
  • Jellyfish are found all over the world, from surface waters to the deep sea. They are not one type of animal, but a group of animals that have an unusually complex life cycle, while being some of the most efficient swimmers on the planet.
  • Project
  • Draw a type of jellyfish.
  • Location
  • Places
    Everywhere, except Antarctica
  • Fun Facts
  • The Lion's Mane jellyfish is one of the biggest jellyfish, while the Stygiomedusa gigantea may well be the largest known.
  • A group of jellyfish is called a "smack".
  • There could be up to 300,000 species of jellyfish yet to be discovered.
  • Though rare to find, fossil jellyfish have been found dating from before the time of the dinosaurs.
  • In some countries people eat jellyfish.
  • Some jellyfish are active predators.