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Transcript of Jellyfish
Many jellyfish live for about a year or less, but some like the Giant Antarctic live for about 5-10 years.
Arctic Lion's Mane is the largest jellyfish in the world
Citation: Retrieved for educational purposes only
Jellyfish have drifted along on ocean currents for millions of years, even before dinosaurs lived on the Earth. They are abundant in cold and warm ocean water, in deep water, and along coastlines.
Jellyfish have tiny stinging cells in their tentacles to stun or paralyze their prey before they eat them.
Some live very deep in the ocean and some, live nearer the surface
The Irukandji is the smallest jellyfish
it is only about 1 1/2 inches.
The Box Jellyfish (also known as a Sea Wasp)
is a very dangerous creature to inhabit Australian waters.
The Jellyfish has extreme toxins present on its tentacles, which when in contact with a human,
can stop cardio-respiratory functions in as little as three minutes.
The poisonous Portuguese man-of-war. It's sting is said to be as toxic as a cobra's bite.
Jellyfish are not fish.
A jelly has no head, brain,
heart, eyes, nor ears. It has no bones, either. It is 95% water! Scientists estimate there may be 2,000 species (kinds) of jellyfish, but we are only familiar with 200. They have been drifting through the world's oceans for more than 650 million years.
To capture food, jellies have a net of tentacles that contain poisonous, stinging cells called nematocysts. They use their tentacles like harpoons.
When you brush up against them they shoot them out and inject the poison .
When the tentacles brush against prey (or,say, a person's leg), thousands of tiny stinging cells explode, launching barbed stingers and poison into the victim.
Jellyfish are carnivorous (eat meat).They eat mostly zooplankton, smaller fish and sometimes other jellyfish. Bigger jellies eat large crustaceans (like shrimp) and other sea animals.
Jellyfish are eaten mostly by spadefish, sunfish, and loggerhead turtles. People in China and Japan like to eat the mushroom jellyfish.
Jellyfish are unique in their own way.
The End - Fin - Annyeong - Tapos