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On Clearing Up The Matter That Mollusks Are Better Than Echinoderms

By cmcclain on March 20, 2008.

Sheril over at The Intersection seems to be confused about what the coolest invertebrate is. She goes so far as to call out PZ about his hyper-infatuation with Cephalopods. Let's face it there is no way an echinoderm, especially a holothurian, can come anywhere near the coolness of a Mollusk. There is a reason why we at DSN have a whole category here dedicated to Cephalopods and not one dedicate to our water-vascularized friends. It's just hard to get excited about a sea cucumber that either feeds on sediment muck or filters muck out of the water column and not much else. Or an organism whose idea of fun is spewing its organs all over you or creating poop trails. Do sea cucumbers do this, or this, or this? I don't think so. If you need more fodder check out this site and see Vermeij discuss how Mollusks are winning the ocean's arms race. Mollusks get both larger and smaller than all the Echinoderms and they are more diverse both in terms of number of species and the ecological niches they fill.

If you don't believe me that Mollusks are cooler than sea cucumbers watch the videos below.


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Segoy, nei?
Echinodermata? Aho!
Cephalopoda!

Mollusks get both larger and smaller than all the Echinoderms and they are more diverse both in terms of number of species and the ecological niches they fill.

And they can kill you. Not all of them, obviously, but a select few ...

Echinoderms RULE! I studied both asteroids and echinoids for my diss and loved them so much that they are now tattooed on my body. Cephalos are a close second, though.

By Dr. Whore (not verified) on 20 Mar 2008 #permalink

I don't think it's a fair comparison with the sea cucumber like that. Echinoderms are cool, but I'll have to say that mollusks are cooler. I got love for all!

Alex

Just had the pleasure on Monday of having Brad Seibel do a guest lecture on cephalopods -- with a focus on reproduction - for one of my classes. For me, it was pure heaven. What with the brooding squid videos and backstory, metabolic studies, and then the D. gigas egg mass videos. Didn't want the class to end. Awesome!

I don't see any cukes ever coming close to that....

Dr. Whore, I would love to see you invert tats! If you haven't already, submit a photo to Carl Zimmer's Science Tattoo Emporium.

Dr. Whore, I remember that one! Its fantastic! I'm waiting for my description of a new species of deep sea shrimp to get published, then I am getting Fig. 2a, a line drawing of the critter we did, tattooed on my leg. My other tats were from my pre-scientist years, although I do have the biohazard symbol on my right arm. Maybe it was an omen.

Hi boys,

Thanks for fighthing the good fight for cephalopods. I don't even understand how the Echinoderms think they've got an arguement...

hmm... it justs kind of sits there. like a plant. not very exciting *yawn* Is that the best team cuke can do?? ;p