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Author Topic: First Teeth, Now Eyes - Which animal has most?  (Read 18737 times)

Offline JimBob

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First Teeth, Now Eyes - Which animal has most?
« on: 18/11/2007 16:51:02 »
I have already asked it - which animal has the most eyes?



 

Offline neilep

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First Teeth, Now Eyes - Which animal has most?
« Reply #1 on: 18/11/2007 18:05:07 »
What about Fred The Fly
And his compound eye ?




 

Offline JimBob

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First Teeth, Now Eyes - Which animal has most?
« Reply #2 on: 18/11/2007 19:50:13 »
We'll sea about that!
 

Offline Karen W.

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First Teeth, Now Eyes - Which animal has most?
« Reply #3 on: 18/11/2007 23:37:16 »
 Spiders have 8  to 12 and above I believe!
 

Offline SquarishTriangle

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First Teeth, Now Eyes - Which animal has most?
« Reply #4 on: 19/11/2007 01:02:18 »
I think Neil's around the mark. It'd most likely be an insect or a crustacean with their compound eyes. Apparently the dragonfly takes it out though at 25,000 ommatidia (units), presumably in each compound eye

http://www.cals.ncsu.edu/course/ent425/tutorial/photo.html
http://entomology.unl.edu/ent801/vision.html

The invertebrates look to be outdoing us on a few things:
...number of teeth, number of eyes, largest sperm (Drosophila), largest penis proportional to body size (barnacles), most legs...
 

Offline JimBob

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First Teeth, Now Eyes - Which animal has most?
« Reply #5 on: 19/11/2007 02:26:20 »
I am counting compound eye like two eyes, not each cell. Even if a compound eye is judged by counting its different ommatidia (each compound cell with lens) a fly or any insect pales in the face of what I have in mind.

The hint in my posts should give it away, r2 - I mean Δ2

Get it? r2d2???? Moan!
« Last Edit: 19/11/2007 02:32:52 by JimBob »
 

paul.fr

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First Teeth, Now Eyes - Which animal has most?
« Reply #6 on: 19/11/2007 02:47:26 »
This question seems a bit fishy!
 

Offline JimBob

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First Teeth, Now Eyes - Which animal has most?
« Reply #7 on: 19/11/2007 02:54:12 »
Not really. Fish have nothing to do with it BUT the environment is correct.
 

Offline Karen W.

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First Teeth, Now Eyes - Which animal has most?
« Reply #8 on: 19/11/2007 10:10:24 »
There is more of this article at the Site I have left!


http://www.goldenstateimages.com/GSI_search.php?srch=starfish+brittle+star&op=ex




SES-049 Large View Request PricingBrittle StarSpecies: Ophiopsilla californicaLocation: California Channel Islands Santa Barbara IslandLong slender arms are covered with sharp spinesRange: Central and southern California




SES-021 Large View Request PricingBrittle StarSpecies: Ophiopsilla californicaLocation: California Channel Islands Santa Barbara IslandLong slender arms are covered with sharp spinesRange: Central and southern California

Brittle Star Found Covered With Optically Advanced "Eyes"
Could this be close???

http://news.nationalgeographic.com/news/2001/08/0822_starfisheyes.html


In a clever twist of nature, the sea has eyes in its stars.

Scientists have discovered a species of brittle star whose outer skeleton is covered with crystalline lenses that appear to work collectively as an all-seeing eye.

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The visual system of lenses in the species Ophiocoma wendtii is the first of its kind observed in nature and is superior to any manufactured lenses, said Joanna Aizenberg, a researcher at Bell Laboratories in Murray Hill, New Jersey.

"These lenses have exceptional optical performance," said Aizenberg, who is co-author of a report on the discovery published in the August 23 issue of Nature. "They are compensated for physical effects that bother us when we fabricate lenses in the laboratory"—effects known as birefringence and spherical aberration.

Brittle stars are sea creatures that have long, thin arms emanating from a small disk-shaped body. They belong to the phylum of echinoderms, which includes sea urchins, sea cucumbers, and sea stars.

O. wendtii is about the size of an outstretched human hand and lives in coral reefs from Bermuda to Brazil.

Light Sensitive

Gordon Hendler, a marine biologist at the Natural History Museum of Los Angeles County in Los Angeles, California, and co-author of the study, discovered that O. wendtii is sensitive to light and can change color.

"They are dark reddish in color during the daytime and go through a strik
« Last Edit: 19/11/2007 20:32:42 by Karen W. »
 

Offline SquarishTriangle

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First Teeth, Now Eyes - Which animal has most?
« Reply #9 on: 19/11/2007 10:20:04 »
What's r2d2?

Maybe one of the jellyfish then?
 

Offline Karen W.

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First Teeth, Now Eyes - Which animal has most?
« Reply #10 on: 19/11/2007 12:02:45 »
Star wars little gold ROBOT! LOL LOL..You kno C3PO's friend
« Last Edit: 19/11/2007 12:06:09 by Karen W. »
 

Offline SquarishTriangle

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First Teeth, Now Eyes - Which animal has most?
« Reply #11 on: 19/11/2007 12:29:55 »
Ahh righto. Never actually seen Star Wars.
 

Offline Karen W.

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First Teeth, Now Eyes - Which animal has most?
« Reply #12 on: 19/11/2007 12:37:41 »
NOOOOOOO....Really????
 

Offline Alandriel

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First Teeth, Now Eyes - Which animal has most?
« Reply #13 on: 19/11/2007 17:52:17 »


Scallops can have a few hundred of these......


 

Offline JimBob

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First Teeth, Now Eyes - Which animal has most?
« Reply #14 on: 19/11/2007 18:15:51 »
Karen and Alandriel win the booby prize - perhaps I should rephrase that.

Karen, if you count insect eyes as the single part that makes it up insect eyes then brittle stars and some sea urchins have ommatidia all over their body and make their skin one big eye.

But it was Pectins (scallops when eaten) that I was thinking of when I posted the question. The reason they can have up to 100 compound eyes with a lens, retina - the whole 9 yards. Patinopecten caurinus, the largest pectin in the world, has about 100 eyes even as a small little bi-valve. Alandriel's picture show two pectin eyes with a tentacle in-between. These are eyes very similar to octopus eyes which are as complicated a mammalian eyes

And Squareish Triangle - Oh, it hurts! your making me feel old - NEVER seen Star wars? You are making me feel very, very old - My 6 year old grand-nephew has Star War toys! But the first movie (with R2D2) was released in 1972

R2D2 -
 

Offline Alandriel

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First Teeth, Now Eyes - Which animal has most?
« Reply #15 on: 19/11/2007 20:00:28 »
That R2D2 piccie did not work out. Let me oblige



Was it really 1972?!?! Gosh - time flies!

And no! It does not make you *that* old Jim Bob. A 6 year old grand-nephew with a toy does not prove anything.

It's just refreshing that there is at least 1 person left on terra that's not been corrupted..... Yet! ;D


Now ...... what's this about... erm..... booby prize?!?!
 

Offline Karen W.

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First Teeth, Now Eyes - Which animal has most?
« Reply #16 on: 19/11/2007 20:41:15 »
YAYYYYYYY! LOL I am honored Jimbob I think! LOL

I added a couple nice pics of the brittle stars!
 

Offline SquarishTriangle

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First Teeth, Now Eyes - Which animal has most?
« Reply #17 on: 20/11/2007 00:00:12 »
Yeah I've never been the greatest watcher of movies. I do remember seeing that little dude somewhere tho.
 

Offline JimBob

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First Teeth, Now Eyes - Which animal has most?
« Reply #18 on: 20/11/2007 01:31:36 »

Now ...... what's this about... erm..... booby prize?!?!


Thank you for a good picture, my dear. As for the prize - you already have them.

(see http://www.urbandictionary.com/define.php?term=booby #2)
 

Offline Alandriel

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First Teeth, Now Eyes - Which animal has most?
« Reply #19 on: 21/11/2007 20:49:05 »
LOLOL - that link is hillarious!!!!

Booby 
 
 1. A species of seabird. The boobies are part of the family Sulidae, a group of seabirds closely related to gannets. Subspecies include the Blue-footed Booby.

 (signed: jimbobjoeshmocheesechickenmonkeyfriedpastramicheeseandpiewithlem - I'm glad your shorted your name for *this* MB)



He's totally cute!!!

I don't have - I want!  ;D


 
 

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First Teeth, Now Eyes - Which animal has most?
« Reply #19 on: 21/11/2007 20:49:05 »

 

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