Talk:Box jellyfish

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Those are so cool! I wish I knew more about the sea wasp jellyfish.....

- Andrew

IMPORTANT QUESTION:

The information on the page for the box Jellyfish recommends pouring vinegar onto the wound before removing any attached tentacles, whereas the page on the Portugese Man Of War states that it is imperative not to pour vinegar until all tentacles have been removed (as the acetic acid causes the tentacles to release their sting).

Now, I know that the PMOW isn't strictly in the same family group as the box jellyfish, but I suspect one of these pieces of advice is wrong. Although this wouldn't ordinarily matter, the fact that Wikipedia is providing advice which could potentially save someone's life, I think we ought to get it right. I'm not a scientist so not best to advise.

Any thoughts?

==Health warning==

That health warning down the bottom seems kind of awkward for an encyclopedia article. - 128.184.2.1 04:40, 19 May 2005 (UTC)

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I just watched a show on the discovery channel that indicated that the SMALLEST form of the Box jellyfish was the most fatal, not the largest form. In fact, the show said that the tiny iracongi (sp?) jellyfish that is the size of a thumbnail is approximately 300 times more potent than the largest box jellyfish.

I think the spelling is "Irukandji " for that small and deadly box jellyfish.

I read in many books that sea wasps that grow to colossal sizes kill faster due to more exposure to skin

The "Irukandji " is actually very different from the box jellyfish, it only has four tentacles and its venom does different things, and if it is truly a 'box jellyfish' they dont get very large at all .

--Deedle 01:25, 20 March 2006 (UTC)The Irukandji species has a venom that is so deadly that it will kill in hours. The largest box jelly, Chironex fleckeri, along with the majority of other jellyfish, have nematosyts that, when activated, turn inside out and the small venom-needles along the entire side of the stinger inject poison into the victim. In larger jellyfish, the need to kill instantly is not a problem, being as the larger jellyfish can use their tentacles (which are stronger and bigger)to hold on to the prey, while the smaller jellyfish (who only injects a more concentrated poison from a small tip of the nematosis, and nowhere esle) cannot do such things, and must kill their victims instantly. By doing so, the small Irukandji can devour its prey instantaneously, and not risk having the prey escape. Indeed, the smallest jellyfish, Irukandji, sleeps, as well as the other jellies, to conserve energy. THis seems illogical, but during this time, there are more predators than prey to the Irukandji, and so it is ilogical to try to hunt. Also, during this time, it is necessary to conserve energy, because unlike many other animals, the jellyfish cannot store fat, and so must constantly feed. The Irukandji actually has many tentacles, but they branch out from four main stalks. The most interesting thing about the box jellyfish, in my opinion, is the odd sense of intelligence. This bizarre animal can actually see... it has four eyes, plus two that can only sense light. THere are also four "brains". These brains are in fact like a smart nervous system. They don't send info to one center, but instead, when something happens, there is an automatic response. <<<<<<<<<<<<< If you have not seen the Discovery Channel show on these jellyfish, and you are interested in this subject, I reccomend watching it. All of the info on this page has been derived from it, I believe.>>>>>>>>>>>>>

The box jellyfish has also been on the BBC radio and I have personally added some info gleened from the BBC radio. Snowman 10:09, 20 March 2006 (UTC)

[edit] Bicarbonate

This article recommends against bicarbonate, while the jellyfish article recommends it. I don't know which is right, but the two articles surely should agree. -- cmh 04:17, 26 July 2006 (UTC)

[edit] Phylogenetic status?

What is the actual evidence that the cubozoans belong to the cnidarians? Their strange body plan (with an anus at the tip of each tentacle (4 in the case of the simplest species), 4 ganglia, 8 groups of eyes (with one proper eye in each and some simpler light sensitive organs) might be explained as the result of a mutation of a bilaterian ancestor. Consider a worm that, by some "reshuffling of its hox-genes" mutates into an animal in which 4 worms are joined togeteher, sharing a mouth between them. The result would be an animal with 4 brains, 8 sets of eyes and 4 tentacles with an anus at the tip of each, i.e. with the cubozoan body plan. It is just a hypothesis, but I would not be astonished if an analysis of their genes would turn up a close relationship to some phylum of bilaterians instead of cnidarians. So has the link to the cnidarians actually been established or have they just been put into that group based on superficial similarities? Just a question, I am not an expert on them. Nannus 19:39, 26 August 2006 (UTC)

[edit] Schypozoa and Jellies

Just a wonder......why do they still use "Jellyfish" here instead of the OFFICIAL name, "Jelly?" And Hydrozoa? Where do they mention Schypozoa? Please answer! le-lover