Do jellyfish include fish?

KOMPA.com – Jellyfish is a group of invertebrate animals made up of about 200 species.

Though Jellyfish usually not aggressive marine animal These are famous for their sting, which allows them to defend against predators.

One of the unique things about jellyfish is that they have no bones, hearts, or most of the other organs. Interestingly, their bodies are mostly made up of water.

Are jellyfish a fish?

Reported by Florida Keys National Marine Sanctuaryjellyfish do not really belong to the fish group because the anatomy of the fish is centered around the backbone, while jellyfish are animals that do not have a backbone.

Read also: Giant ghost jellyfish, mysterious giant sea creatures

In fact, jellyfish are most closely related to corals, sea anemones, sea whips, and hydrozoans.

The reason is that they have a distinctive body part namely stinging cells like spears which are used to catch prey.

Generally these cells are called cnidocytes, which from ancient Greek means nettle. Therefore, the animals in this phylum are called cnidarians.

The cnidocytes on the tentacles of the jellyfish secrete venom from a sac called a nematocyst.

This helps the jellyfish catch prey floating in the water column.

Read also: This super rare giant jellyfish captured by the Deep Sea robot camera

Jellyfish have limited control over their movements. Therefore, jellyfish move in currents and often appear in large masses.

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