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Being made mostly of water, and having a neutral buoyancy, primary jellyfish movement is provided simply by drifting with currents and tidal forces.
Short term and/or limited distance movement is additionally accomplished by propulsion. This force is initiated by contracting a ring of muscle cells around the opening of the umbrella shaped bell, causing an explusion of the water contained inside the bell. The springiness of the bell slowly returns it once again to an open shape, even as the jelly is still gliding forward, due to momentum and the streamline shape of the bell in the direction away from the open end. This process can then be repeated to continue forward movement.
A few species of box jellies are such strong swimmers, though, that they are able to overcome planktonic (current and tidal) movement, so that they can direct their travel. Fewer box jellies wash up on the beach than their relatively helpless cousins. Scientists are currently studying whether the species, Chironex fleckeri (marine stinger) actually stalks its prey, since they reportedly can move as fast as a human can walk. This species also has complicated eyes containing a lens, cornea, and retina; it can navigate simple mazes; and it has demonstrated short term memory.
What else can I help you with?
What is the difference between jellyfish and coral reef?
Coral Reefs don't really move and jellyfish move around, and sting people. Coral Reefs help other thins in the sea survive, where as jellyfish don't. The jellyfish are just there.
Why do box jellyfish move?
box jellyfish move so they can hunt
What are the three jobs of the skeletons?
Without our skeletons we would be worthless.It makes it so we can all move our body parts.Ribs keep your lungs from clasping andMakes body parts able to move and protects the brain.movementholding our body thought
How do jellyfish know to eat if they have no brain?
They filter in plankton in the same way that they move around.
Does the jellyfish had a exoskeleton?
No the jellyfish does not have a exoskeleton because if they di they could not move.
why are skeletons so funny?
because it can move!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
What are some special skills that a jellyfish has?
well depending on the size of the jellyfish, they can successfully hunt and kill a fully grown sperm whale. they also have the ability to move objects with their minds. But without a doubt the best skill that jellyfish have is that the are the best ninjas in the world
Are jellyfish nektons?
yes jellyfish are nektons because it move freely any thing that move freely in the ocean is a nekton.
Do jellyfish use their legs to move?
No.
Do penguins have rigid skeletons?
No, if they were they would not be able to move.
How does a jellyfish get around?
They move through the water by radially expanding and contracting their bell-shaped bodies to push water behind them.
Do jellyfish move around or stay in one place?
so they cannot be spotted by any predators. they are also transparent, witch means the jellyfish is camouflaged. some aren't so transparent. the box jellyfish is quite colorful. some jellyfish are still because the current takes them with it such as the mediterranian jellyfish. the Enchanted Jellyfish is a very colorful creature. so most jellyfish are very active but some are lazy current users.
