h2g2 The Hitchhiker's Guide to the Galaxy: Earth Edition

Entry: The Cnidaria - A2290411
Author: Vic - U182771

Haven't written an article in ages but i was writing an essay on the same topic and realised there was a gap in H2G2. So... what do you reckon??

xx Vic xx

Very nice . I think you will need to explain or link from some of the more technical terms, such as 'zooxanthellae'.

Otherwise, a really good entry.

Good Well done, nicely written, and it all seems to make sense and be correct (it all seemed to trigger off distant memories of siting in 'Taxonomy' classes at University) Though I guess some of the more technical terms might need explaining as already mentioned, though personally there wasn't much I can think of term wise I didn't know already, but not everyone has studied this stuff which is really

Yes, it would be nice to get a description of zooxanthellae. And, (shock horror) you used the term Jelly Fish at one stage.

But, after that, this is a really excellent entry. Extremely informative and very well written. Well done.

Woodpigeon

One thing that might be worth pointing out is that some cnids show both medusan and polyp forms in their life. i seem to remember that a jellyfish egg starts out as a polyp which then then grows and splits into a whole lot of little jellyfish. Is this true?

yeah, jellyfish have polyp stage, i think it's referred to as the planulae stage which allows them to disperse around. I didn't really go into the reproduction as it's a bit complex but i should write about it to make the article more rounded... there's lots that can be said about cloning and colonial Cnidarians and stuff like that!

I shall explain some of the more technical terms as well. cheers for all your advice and thanks for reading through it

xx Vic xx

Any chance to work on this some more, Vic?

It seems not, as the author has Elvised.

I propose a move to FM.


Geggs

Geggs, are you e-mailing, or shall I?

You do it, I'm too tired to try to make sense of another list tonight.


Geggs

So tired that I'm forgetting may manners.

I meant, of course, that if you would be so kind as to add it to your list, then I would be most oblidged.


Geggs

No worries

Consider it added

I'm sorry, i am about, it's just i've been rather a bit busy at the moment so things like this have slipped way down on the list of things to do.

Exams... new job... grrrr

Vic

I was disappointed by this entry. There's so much to be said about Cnidarians and I thought this said very little. You provide lots of extra stuff such as examples of convergent evolution and turtles eating plastic bags, but you don't actually tell us very much about Cnidarians themselves.

What are the basic types? Can you give an example of each that we might have heard of or encountered? What makes a jellyfish different from a coral or an anemone? What's a sea pen, and where do you get them?

I'd expect that if there are four types, there should be four sections, each with a header; a description of what is in the type; what the technical and common names for the type are; an example or two of that type.

Vic hasn't been sighted for more than three months... should we move this one to the FM?

seconded for flea market.

Adding to the list!