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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

Why is a jellyfish like jelly?

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).

Does a jellyfish hunt by itself or in a group?

eather one they get to choose they can find food alone or together it's actually the jellyfish's choice.

What covers jellyfish body?

Very interesting question! The body of a jellyfish is made of 3 different layers: the epidermis (the skin), a middle layer called the mesoglea (the "jelly part" that give the jellyfish a see-through appearance), and an inner-layer called the gastrodermis that connects these other layers with the stinging capsules of the tentacles.

You can read more about this on the following websites, the links are found in the related links below:

1. the NOAA site about jellyfish bodies:

This website is a short blurb that agrees with the information from the first website. Since it's produced by NOAA, a widely recognized and respected weather and ocean research service, you can trust the information is accurate.

2. About.com's jellyfish facts article:

This website has many different facts about jellyfish, including what their body is made of. The author of the article also tells you where she got her information, so you can trust that is it accurate (and you can also look at her sources if you want to learn more!)

3. jellyfishfacts.net:

This website tells you alot about jellyfish, where they live, the different types, what their body is made of, and other information about jellyfish anatomy. Although we don't know where the author got his information, the information on this site agrees with the information listed on the previous two sources.

How does a jellyfish move?

  • Transported by the water currents.
  • Can swim with rhythmical contractions of the bell(muscles).

Where do blue bottle jellyfish come from?

They live in the Florida Beaches and warm parts of the sea.

What type of skeleton does jellyfish have?

they don't have skin, their body is made mostly of water. It is basically a thin layer of cells and that's it.

Which Stinging cells are a characteristic of members of this phylum.?

the scientific phylum name is Cnidaria. this includes animals such as jellyfish, anemone, and coral. Some are medusa shaped (jellyfish) or polyp shaped (upside down jellyfish) All of them have nematocysts which is a scientific name for stinging cells. These invertebrates evolved from sponges. New characteristics include movement (sponges move but only at the larval stage) and tissues for the movement (muscle and nerve tissue). They also evolved from asymmetrical symmetry (sorry - redundant) to radial symmetry.

How long can a jellyfish be on land?

definitly not because it is a "water creature"

Why do jelly fish light up?

biolumin escent animals are the one that glow up

Color of a jellyfish?

Colors of jellyfish can vary from blue, purple, pink, or even transparent or a clear color. It depends what species you are looking at. They are made of 95% or more of water, making their color lighter.

What part of a stinging nettle stings you?

Nettles are covered with tiny tiny needle like and sharp "hairs" made of silisium.

On thin skin, these razorsharp needles cut through your outer protective skin.

Further more, inside these silisium needles there is a mix of:

histamin, serotonin, acetylkolin, 5-hydroksytryptamin, formic acid, butyric acid and vinegar.

The pain is however mostly caused by the acids.

Nettles can sting you, but only where skin is very thin.

The silisium needles are very very fragile and break off easily.

These needles pose no threat in our skin because they are quickly dissolved and absorbed by our body.

You can normally pick nettles without getting stinged if only touching the stem.

It is the underside of leaves that is most "painful".

Topside of leaves do not sting.

What are the adaptations of a irukandji jellyfish?

They are very gay and U.G.L.Y Like you! TAHAHAHAHAHAHAH ,JOKING KID?

Do jellyfish have our five senses?

Though jellyfish do not have sight, per se, many species can detect light and dark. Some swim away when exposed to a sudden light, while others swim when it gets dark. They also have chemical receptors that more or less help them to almost taste what is around them.

They have a well-developed sense of touch, particularly along their tentacles and manubrium (mouth).

Finally, many species also have a primitive sense of balance, which they get from statocysts arranged around the base of their bells.

What are the organ systems in the medusa jellyfish?

Seahorses organ system is basically identical to that of other fish.

What is in box jellyfish venom?

Difficult question to answer. Not all box jellyfish are toxic, at least not to the point of being dangerous to humans.

Not all box jellyfish venoms have been studied and not all are alike.

There are two orders of box jellies: Chirodropida and Carybdeida. Chirodropida is represented by two clades: Anthozoa and Medusozoa. Carybdeida are divided into five families: Alatinidae, Carukiidae, Carybdeidae, Tamoyidae, Tripedaliidae.

The primary difference between Chirodropida and Carybdeida, is the presence of branched muscular bases at the corners of the cubic umbrella of Chirodropida, and the absence of these in Carybdeida.

The specific toxins and protein sequences of box jelly toxins are still unknown. Work continues to isolate them so that anti-toxins can be developed. What is known is that box jelly toxins can affect the heart, nervous system, and skin cells of victims. Unlike the venom of other animals, jelly poisons often have a sodium channel modulating process. Other functions of box jelly poison may actually make cells more porous and lead to the increased loss of phosphorous.

Box Jelly venoms do not fit neatly within any other known venom categories.

Are lions mane jellyfish dangerous?

No. In spite of the fictional Sherlock Holmes short story, The Adventures of the Lion's Mane, they are not known to have caused a fatality. As a salmon fisherman in the Pacific Northwest, I have encountered Cyanea capillata most of my life. Their stings seldom penetrate most areas of skin, unless a tentacle encounters a cut or lesion. One exception is if you urinate when an unnoticed tentacle happens to adhere to your hands. Ouch. (And urine doesn't help, btw.)

My anecdotal story aside, it is probable that the larger (up to 8 foot in diameter) arctic variety can sting more viciously than the 2 foot variety that I have encountered. Studies show that vinegar can cause more stingers to fire in this species, so it would be wise to just pick any remaining pieces of tentacle off with your fingers (the pads of your fingers are too thick to be penetrated), and then soak in hot water, or apply ice packs. The effects of the sting are neither long lasting, unbearably painful, nor life-threatening.

Where does the jellyfish live?

jellyfish actually came from the Lord in the heavens who made everything all the universe even me and you and if I were you I would accept in your life and Christianity is NOT A RELIGON it is actually a relationship with the alpha and omega begining and end and THERE IS NO SUCH THING AS EVOLUTION you people read your bible and just trust in the Lord and have a real relationship with him.

Whats special about a jellyfish?

Sea Anemones are carnivores (flesh eating), many have a flower like appearance and vary in size, shape and color, they attach themselves to fixed objects such as coral, rocks etc. and wait for passing prey which they sting then eat, their mouths are generally in the center of their bodies.

Please see related links below!

How does the box jellyfish eat?

yes a box jellyfish can be eaten by a multitude of things such as turtles, spadefish, sunfish, and some loggerhead turtles.

Are jellyfish plankton?

Neither. Fish and amphibians are vertebrates. Jellyfish are invertebrates, specifically cnidarians.

Does urine help the sting of jellyfish?

If you pee on a jellyfish sting, you'll smell like urine and the sting will still hurt.


Urinating on a jellyfish sting does not deactivate the stingers. Vinegar and vodka are better remedies. There is more information at http://www.jellyfishart.com/kb_results.asp?ID=17

Do immortal jellyfish live in salt water?

Most (98%) will die and almost all will die if the change is made quickly. Salt water fish actually drink the salt water, excrete the salt, and are left with unsalted water in their body; they do this because the sea water, through the process of osmosis, draws out water from the body. When they are placed in fresh water, they continue to drink the water, but since the water is now less saline that the fish, water is no longer being drawn out, and in most cases (especially if the transfer was too quick), will start absorbing water, hence they will typically die.