Jellyfish is an important plankton in the aquatic environment and is a very beautiful aquatic animal. Its body shape is like a transparent umbrella, the diameter of the umbrella body is large or small, and the diameter of the umbrella body of the large jellyfish can reach 2 meters.

Jellyfish existed as early as 650 million years ago. Whether it is tropical waters, temperate waters, shallow waters, oceans up to 100 meters deep, or even freshwater areas, there are traces of them.

Do jellyfish have natural enemies?

Unlike other marine organisms, which typically contain fats, carbohydrates, and proteins, jellyfish don't have any key substances that provide energy and nutrients to the creatures. More than 97% of the jellyfish body is made up of water.

So why do jellyfish have so many natural enemies?

They contain other nutrients, are a favorite of other marine life, and because jellyfish are easy prey. The main natural enemies include a variety of fish, seabirds, turtles and so on.

Some jellyfish will prey on other species of jellyfish.

The way of life of jellyfish.

prey.

Immediately after the jellyfish finds its prey, its tentacles cling to the prey and shoot out venom. After the prey is stabbed, it will quickly paralyze and die.

Jellyfish are all carnivorous, feeding on plankton, small crustaceans, polychaetes and even small fish.

Symbiosis.

Jellyfish have their little friends, the double-fin pomfret. It can swim freely between the tentacles of the jellyfish without being attacked.

The jellyfish "protected" the pomfret, which devoured the small creatures that inhabited the jellyfish.

Sports.

The jellyfish changes the volume of the inner cavity by shrinking the shell and squeezing the inner cavity, ejecting the water in the cavity, and moving with the help of water jets. Jellyfish use their tentacles to effectively change the direction of movement.

Toxicity.

Jellyfish are beautiful but fierce. Those slender tentacles are its digestive organs and its weapons.

The tentacles are covered with stinging cells that, like poisonous threads, can shoot venom. After the prey is stabbed, it will quickly paralyze and die.

Once jellyfish encounter prey, they will never let go easily.

After being stung, humans experience rash, redness, itching, pain, drop in blood pressure, and even difficulty breathing, fainting, shock and death.

When it is difficult to breathe after being stabbed by a jellyfish, artificial respiration or cardiac injection should be performed immediately. Don't be careless to avoid accidents.

Such a beautiful but ferocious creature can only be seen from a distance, it is best not to touch it with your hands!