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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
Do jellyfish live in tidepools?
We have been watching a jellyfish that has been out of the water for apprx. 6 hours, and it is still breathing/flexing and clearly still alive. The tide is now coming back and we'll see if it can still swim and function normally......
How many legs doze a jellyfish have?
None. They can have many tentacles but no legs.
they don't have leggs they have tentacles and they have about 2 dozen
Do box jellyfish live in the cold?
Because jellies do not have blood, or a circulatory system, they can not be considered "cold-blooded." However, they are ectotherms whose body temperatures are equal to the temperature of the environment.
Are jellyfish native to Australia?
There are a number of jellyfish species native to Australia. The giant spotted jellyfish is a particularly pervasive species which has started spreading to the norther hemisphere, specifically the water of the United States and even as far as Ireland. The most dangerous species of native jellyfish is the box jellyfish, of which there are several sub-species. A sting from the tentacles of the Australian box jellyfish Chironex fleckeri can cause death within minutes, although some people have survived it.
What are the names of some jellyfish?
There are over 1,500 different types of jellyfish. Some of the more common types of jellyfish are the box jellyfish, the lion's mane jellyfish, and the cannonball jellyfish. The moon jellyfish is the most common jellyfish to be kept in captivity.
What is the difference between a jellyfish and starfish?
Jellyfish are cnidaria coming from the greek "cnidos" meaning nettle. Sea stars are NOT crustaceans as the previous individual wrote, but are in fact echinoderms meaning spiny skin. There are many differences between these two phyla. For example, jellyfish are mostly pelagic whereas sea stars are bethic sticking to substrate. Jellyfish move by squeezing their bodies (bell) and forcing water out the bottom. However, they are subject to currents and winds. Sea stars in contrast move via many tiny tube feet on the oral surface (bottom of this animal). These are only a few examples.
a jellyfish is just a sea creature that dances with each other every morning and the male is the one who gets pregnant not the female! i am not really sure what is the point of it I'm trying to find it out. i never really was that interested in then but i don't know why i am not i wanted to know how big can a jellyfish get and why does it shock people?,i now realy intrested in them i dont know why but i will find out everything about them! :D
Yes Jelly fish can poison the body. They have a microscopic cells (which stings you) connected to their tentacles. When these tentacles stick to you, every stinging cell connected to you goes into your skin, and releases their toxins directly into your tissue, muscle, and bloodstream. This is why you can die from jellyfish so much faster. Others' venom take longer to reach other parts of your body.
Jellyfish don't experience any fear because they haven't got a brain.
How do jellyfish find each other?
Most jellyfish are passive drifters that feed on living or dead preys: small fish, eggs, zooplankton and other invertebrates that become caught in their tentacles. Preys are brought (by tentacles, if they have any) into the cavity, called coelenteron, where it is digested. Jellyfish have an incomplete digestive system, meaning that the same orifice is used for both food intake and waste expulsion. Jellyfish have cells called cnidocytes, which contain nematocysts, and located on their tentacles, mainly. Whenever a prey comes in contact with cnidocilia (structures of the cnidocytes), hundreds to thousands of cnidae (filaments of the nematocysts) are ejected into the prey 's direction; nematocysts' cnidae inoculate a poisonous or allergenic mixture into the prey 's body; the prey , if live, die by osmotic shock, paralysis or anaphylactic shock and is then brought to the mouth with tentacles or with oral arms. Jellyfish of the Order Rhizostomeae have no tentacles, instead they have cnidocytes on the manubrium (oral arms).
they attract fish and digest them through their stingers
What are the stinging cells of a cnidarian called?
Cnidarians have specialized sells that are called cnidocytes. They use these special cells to capture prey. Cnidocytes have a special cavity in them called a cnida. Inside the cnida a coiled up tube is held. These tubes can do many different things depending on what type of cnidocyte it is held in, like release toxins, wrap around a prey item or secrete a sticky glue like substance. A lid called the operculum closes the opening of the cnida. Cnidocytes also have a modified cilium called a cnidocil. The cnidocil is like a trigger - when it is touched it forces open the operculum and releases the coiled tube held within.
What is the name of the female jellyfish?
It's impossible to say, probably a jellyfish of genus Pelagia, like the common Pelagia noctiluca.
What is the jellyfish hunted by?
The main predator of jellyfish are other jellyfish (usually larger). Also, sharks and other predators eat jellyfish in the open ocean.
There enemies are the Ocean Sunfish, Leather Back Turtle, Sea Birds, Fish, Squid, and especially Sea Turtles. Many times have they been eaten by these other creatures, but they can hide from them as well with the colors when they are not glowing.
You hold the jellyfish with the part that doesn't have tentacles. This means that you hold it where their head is.
Are jellyfish found in the mediterranean sea near Cyprus?
Yes. Jellyfish are found throughout the Eastern Mediterranean Sea, and throughout all oceans.
Is a jellyfish autotrophic or heterotrophic?
A jellyfish is heterotrophic, because it is classified as an animal. All animals are heterotrophic.
Is a stonefish more venomous then a box jellyfish?
The box jellyfish is the most venomous; the arrow frog the most poisonous. Poisonous and venomous are not the same thing.
Yes they have stingers like jelly fish. Few portuguese man-of-war (blue- bottles) stings in Hawaii cause life-threatening reactions, but this is always a possibility. Some people are extremely sensitive to the venom; a few have allergic reactions. Consider even the slightest breathing difficulty, or altered level of consciousness, a medical emergency. If tentacals are stuck in skin do not apply vinagar. This may cause a worse reaction. Rinse with water until gone. For more informatio visit:http://www.aloha.com/~lifeguards/portugue.html
