A jellyfish is a soft, wobbly sea animal that lives in the ocean. It has a round, jelly-like top called a bell, and long arms called tentacles that hang down. These tentacles can sting to catch small fish and other tiny sea animals for food.
Jellyfish don’t have a brain, heart, or bones, but they can still move, eat, and feel things using a simple nerve system. Most of their body is made of water, which is why they feel squishy.
They can come in many sizes and colors—some are as small as your fingernail, while others can be bigger than a person!
Jellyfish mostly float along with ocean currents, but they can also gently pulse their bell to move up and down in the water.
Some jellyfish can glow in the dark, and some c
an be dangerous to humans if they sting, like the box jellyfish, which is one of the most venomous animals in the world.Jellyfish glow because they have special stuff in their bodies that can make light. This light is usually blue or green and shines in the dark water.
