Jellyfish are gelatinous aquatic animals

Supporting Sentence :

They are free swimming invertebrates evolved around 500 million years ago, living in both warm water and cold water. They are easily identified by their trailing tentacles and umbrella shaped bells.

A bell shaped body and tentacles as their most prominent features

Supporting Sentence :

The bodies consists of more than 95% water, giving them a soft and translucent texture.

They do not have brains or bones but possess a simple nervous system that helps them detect their surroundings

In pelagic regions of the open ocean, and some in frigid arctic waters.

Supporting Sentence :

Most species are found in coastal regions. All jellyfish occupy saltwater habitats, and some range into brackish waters. They are pelagic organisms that drift in the open ocean rather than living on the seafloor

They are predators that feed on small marine organisms like plankton and small fish.

Supporting Sentence :

They use stinging cells, called cnidocytes, on their tentacles to paralyze or kill prey. While some can sting humans, causing pain or irritation, the severity depends on the species.

The main diet of jellyfish consists of small sea organisms

Supporting Sentence :

They eat plankton, baby fish, fish eggs, shrimp, and small crabs. Some jellyfish also eat algae, both growing on their own and living together with other animals