What is the biggest Jellyfish in the World?

There are various types of jellyfish found in many oceans of the world.  Each species has its own distinct appearance and characteristics.  Further, they also vary in their color and size.  The tentacles of jellyfish consist of several stinger cells which they utilized against their prey.  Interestingly, jellyfish does not have eyes or brain. They sense their surroundings through different chemical reactions.

One of the frequently asked questions regarding jellyfish is what is the biggest jellyfish in the world?  Aside from that, some people would want to know, how big is the biggest jellyfish?  The biggest jellyfish ever recorded is the Lion’s mane jellyfish from Cyanea capillata family.  It was first found washed up on the shore of Massachusetts Bay in 1870.  However, their sizes may vary based on location.  Those situated in the lower latitudes are generally smaller than those in the Northern side.

The world’s biggest jellyfish has a measurement of 2.3 meters or 7 feet, 6 inches in bell diameter, and tentacles of 36.5 meters or120 feet long.  The Lion’s mane jellyfish has 8 clusters of tentacles; with each cluster has over a hundred individual tentacles.  The oldest tentacles are often dark red in color.  Think about the number of stinger cells that Lion’s mane jellyfish have.

Even though the venom toxicity level of a Lion’s mane jellyfish is not so high, the amount of tentacles and stinger cells can cause the damage.  When stung with this jellyfish, the person may experience severe burning sensation, formation of blisters, irritation, and muscular cramps.  In most severe cases, respiratory and heart function is affected.  The Lion’s mane jellyfish is capable of injecting very large volume of venom, thus, causing fatalities.

However, in milder cases, a person may only have localized redness on the stung area of the skin and temporary pain.

Being predators, Lion’s mane jellyfish feeds on small fish, zooplanktons and moon jellyfish.  But they are also the prey of larger fishes, sea turtles, seabirds and other species of jellyfish.

These giant jellyfish mostly thrives in very cold water.  Therefore, contact with people seldom happen.  They are usually found in Pacific Ocean, Artic oceans, the north and Irish seas, as well as, around the coast of Australia.

Because of their large size, the tentacles of Lion’s mane jellyfish get entangled on a ship’s rope.  Fragments of tentacles are harmful and will sting when you touch them.  They must be removed carefully without coming in contact with the skin, as their tentacles still retain its stinging power.

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