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Evolution, development, and random biological ejaculations from a godless liberal
PZ Myers is a biologist and associate professor at the University of Minnesota, Morris.
…and this is a pharyngula stage embryo.
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Chance and regularity in the development of the fly eye
Development, medicine, and evolution of the neck and shoulder
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Chelifores, chelicerae, and invertebrate evolution
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Category: Cephalopods • Organisms
Posted on: September 24, 2006 1:35 PM, by PZ Myers
Since Friday's cephalopod was a repeat (sorry, it's such a lovely picture that it caught my eye again), here's another to compensate.
Figure from Cephalopods: A World Guide (amzn/b&n/abe/pwll), by Mark Norman.
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Comments
Speaking of cuttlefish, it seems they are colorblind.
http://www.mbl.edu/inside/what/news/features/feature_cuttlefish.html
There's short movie clip showing a cuttlefish doing a camouflage color change.
Posted by: Owlmirror | September 24, 2006 2:55 PM
And speaking of camouflage, I think that the critter shown isn't trying to hide at all, but is displaying a zebra stripe mating display. I think. For a while I thought it might be an example of a Turing pattern, but colleagues in my (marine biology) lab poured scorn on that idea. Pretty, 'though.
Posted by: postbloggery | September 24, 2006 4:44 PM
I've tried a couple of times, but I STILL can't see the second one. If there's no bigger pic, can anyone tell me where it is? It's driving me nuts.
Posted by: TAW | September 24, 2006 6:08 PM
The male is covering the female -- she's underneath him, feeling the tickle of a tentacle.
Posted by: PZ Myers![[TypeKey Profile Page]](http://scienceblogs.com/pharyngula/nav-commenters.gif)
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September 24, 2006 6:44 PM
Do young cuttlefish have to be able to seem their own skin, in order to learn which cameflouge pattern best matches the background? Seems to me that's an interesting question. I'm not sure how you would test it.
Posted by: Russell | September 24, 2006 6:59 PM
Hello Kuttlefish!
Posted by: CCP | September 25, 2006 8:56 AM