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Jellyfish
Found in every ocean, jellyfish are not technically "fish." Jellies have an umbrella like structure that allows them to float beautifully in the water. Watch out though, some of them sting!
1,930 Questions
There are over 200 species of Scyphozoa, about 50 species of Staurozoa, about 20 species of Cubozoa, and in Hydrozoa there are about 1000-1500 species that produce medusae (and many more hydrozoa species that do not).
Why is the Portuguese man-of-war important to humans?
It is not. Portuguese man of wars are very poisonous, can sometimes be very large, and sometimes very scary. Their stings can be so painful and toxic that it could lead to lung and heart problems or even shock. Even dead portuguese man of wars can still deliever a powerful sting to a human. There have been groups of 1000 or more portuguese man of wars swimming on the ocean surface.
Which ocean do jellyfish live in?
Different species Jellyfish can be found in all the oceans across the world.
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What is a young jellyfish called?
A sexually immature jellyfish is called an ephyra.
It's called a polyp
Do jellyfish live in Oklahoma?
Yes, the freshwater species, Craspedacusta sowerbii, has been spotted several times in Broken Bow Reservoir and Lake Murray, and at least once in two dozen other bodies of water in Oklahoma.
What is a jellyfishes defense?
Jellyfish defend themselves using nematocysts in their tentacles. Nematocysts are roughly the equivalent of having many tiny spears on the end of many tightly wound springs. Once something touches the jellyfish's tentacles, the nematocysts are launched. If you are stung, they are very painful and depending on the species of jellyfish, they can be very dangerous or even life-threatening. Jellyfish also use this same technique to catch prey.
Why does Santiago hate the Portuguese man of war?
Santiago's interaction with the sea is portrayed as a masculine/feminine dichotomy. Hemingway describes the interaction of other fisherman with the sea as strictly a masculine competition, while Santiago instead dances with a wife, a gentle and beautiful partner that can also be cruel, wild, and wicked, but only because that is her nature and not because she wants to be.
He sees the beautiful jellyfish in the same feminine way as the sea, but he identifies with the giant sea turtles that prey on the man of wars, and enjoyed watching them consume their prey during the many years that he worked on a turtle boat. He likens his own heart with the turtles, which can continue beating for hours after removal from their bodies.
The story is also a metaphor for viewing his long life from the perspective of nearing its end. The sting that he received earlier in his life from a man of war jellyfish didn't destroy his vision of its beauty, but his encounter with one late in his life reminds him of the bitterness that often derives from feminine wiles, and just maybe he misses the passion of those encounters. His hatred of the jellyfish sting coexists with his love for their beauty, and at the sunset of his life, he can finally see that both emotions are required parts of the dance.
Or not, your opinion may vary.
Cnidarians (jellyfish) mostly get eaten by spadefish, sunfish, and loggerhead turtles
The only usage I am familiar with was a very unusual concept in one of the Tom Swift Jr. Science-fiction stories- possibly it appeared in more than one. The Green Orb was a planet-sized ( okay , maybe asteroid sized) natural object that was actually on closer encounter ( by space-suited astronauts) an extraterrestrial Life-Form. It was, Green in color, hence the name. As it was described in the story it had something of the aspect of a colonial life-form like a Polyp or Jellyfish but had an internal intelligence. How the Orb came into our solar system was never entirely explained. There were various crater-like structures,that opened up like internal blood vessels as the astros explored the orb and drew into telepathic contact with the center nerve center of the Being. It was understood the Orb had no hostile intentions, so all ended well. There were neat touches of more or less Fantastic Voyage and also the Outsized human heart at the Franklin Institute. a neat jab at a very unusual life form, which for obvious reasons, could not land on earth!
Where do jellyfish raise young?
Jellyfish have two stages to their lives. Once they have mated the fertilized eggs settle on the sea floor and develop into small, sessile, polyps. Then some time later these polyps will start budding, each bud will turn into a free swimming miniature jellyfish that becomes part of the plankton and then grows bigger to look like the adult.
What is the box jellyfish domain?
The jellyfish is a cnidarian, and all cnidarians belong to the taxonomic domain of Eukarya, which are characterised by having cells with nuclei. Eukarya covers all organisms in the Kingdom Animalia, as well as the Kingdoms Plantae, Fungi and Protista.
If you mean how potent the venom is altogether, it would be the Irukanji jellyfish of Australia. If you mean how dangerous the critter and its venom are to us, it would be Chironex Fleckeri, the Box Jellyfish, which also lives in Australia (in Queensland).
How would a jellyfish catch a fish?
jellyfish have tentacles hanging down and streaming behind them in the ocean that have poisonous stingers on them, and other tentacles that grasp prey that has been stung and pulls it up into itself.
