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Wednesday, 9 September 2015


The Chinese have fished and eaten jellyfish for 1,700 years. They are both a culinary delicacy and used in Chinese medicine.

The lion's mane jellyfish, also known as the giant jellyfish or the hair jelly, is the largest known species of jellyfish.

A Lion's mane jelly. Photo by Dan Hershman. By Dan Hershman

The largest specimen ever found of the lion’s mane jellyfish was washed up in Massachusetts Bay in 1870. It had a diameter of 2.28 metres (7ft 6in) and tentacles of 36.5m (120ft).

Jellyfish are rich in protein and very low in fat, and can help expand veins and lower blood pressure.

Jellyfish can be used as an egg substitute in baking recipes.

The word Jellyfish has been officially used since 1796.

In many languages the word for jellyfish is medusa after the mythological Gorgon Medusa, whose snakes for hair suggested jellyfish tentacles.

As jellyfish are not true fish (which are vertebrates, unlike jellyfish), the word jellyfish is considered by some to be a misnomer.

Colonies of jellyfish are either all male or all female. Both sexes release both sperms and eggs.

Swarms of jellyfish are called a bloom.

Jellyfish should be kept in cylindrical tanks because they can get stuck in right angled corners

Jellyfish are the ocean's most efficient swimmers, consuming 48% less oxygen than any other swimming animal.

Jellyfish suck water toward themselves to move forward instead of pushing against the water behind them.

Jellyfish are about 95/98 percent water, if you leave them in the sun they will evaporate.

Jellyfish like salt water. Rainy seasons reduce the jellyfish population by putting more fresh water into salty waters where they live.

The color of some jellyfish is affected by their diet. For example, eating a lot of larval crustaceans can make the moon jellyfish pink or purple.

If a jellyfish loses a limb, it simply rearranges what's left until its body is once again symmetrical.

Jellyfish do not have brains but instead have nerve nets which detect environmental changes in and coordinate the animal’s responses.

Jellyfish, despite having no brain, still need to sleep.

Box jellyfish have 24 eyes. eight of them are image-forming and structurally similar to human eyes, while the other 16 are thought to sense only the intensity of incoming light from all directions.

Lion's Mane are the largest jellyfish. Their bodies can be nearly 6 feet wide and tentacles 49 feet long, making them longer than a blue whale.

The sea wasp jellyfish has enough venom to kill 60 adults.

The kingslayer jellyfish has some of the world’s most potent venom, although it’s no bigger than a thumbnail

90% of all jellyfish are smaller than a human thumbnail.

Jellyfish fire their toxic barbs into their prey's flesh at ten thousand times the force of gravity.

Even dead jellyfish can sting.

If you're stung by a jellyfish, application of Coca-Cola can be a suitable treatment.

Irukandji syndrome, caused by the venom of Carukia barnesi, a species of Irukandji jellyfish, has an unusual symptom where the victim has a feeling of "impending doom." It has been reported that some victims are so sure they are going to die, that they beg the doctors to kill them to get it over with.

Jellyfish can be used as an egg substitute in baking recipes.

Source Daily

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