thousands of years ago, millions of jellyfish were trapped in the lake, when a submerged reef rose from the sea. the jellyfish adapted to their surroundings by losing their sting completely. you can...
just a jellyfish is probably called a jellyfish because it's has the word jelly (because of his skin and or texture is like jelly) and fish is in there just (because the jellyfish live in the ocean...
The jellyfish eats dead or living small fish, eggs, zooplankton, and other underwater invertebrates that get caught in their tentacles as they drift to the current.
cool