We just learned about the Black Sea Nettle.
Another type of jellyfish is the Cannonball Jellyfish, also called the cabbagehead jellyfish, or Stomolophus meleagris.
It gets its name because it is about the size of a cannonball, and it is round and sometimes brown colored.
They grow to about 10 inches wide, and underneath they have arms taht they use to catch prey or to swim.
These jellies are usually found in the Atlantic ocean, all the way from North America to South America.
Sometimes they are found in the Pacific ocean too, but not as much.
They mostly eat small animals like plankton, by letting out some mucus that has a toxin poison in it.
This poison keeps away predators and stings the small fish or plankton so they can eat them.
Humans normally would only get an itchy sting from these jellies, but they can cause humans to have heart problems or eye problems if they are stung.
The leatherback sea turtle is the top predator for these jellies and will eat them right up.
(from: wikipedia - canonball jellyfish)
Cannonball! - Monterey Bay Aquarium
Kid Facts - Blast from the past: Orthoceras Nautilus
