Jellyfish can be found in all ocean waters.
Because jellyfish tend to just follow the currents of the ocean, they can be found around the world in every type of ocean water. They can thrive in warm tropical water or cold Arctic water. They've been found at the bottom of the ocean and near the surface.
How is a jellyfish born?
Just like butterflies, which that are born from the transformation of caterpillars, jellyfish are born by asexual reproduction from polyps that – unlike caterpillars – remain alive for many years.
Where did the jellyfish come from?
Jellyfish come from one of the oldest branches on the animal family tree, the phylum Cnidaria, which includes corals and anemones. Jellyfish were probably the first muscle-powered swimmers in the open ocean.
