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Horseshoe crabs

Horseshoe crabs

An arthropod subclass (xiphosura) comprising the north american (limulus) and asiatic (tachypleus) genera of horseshoe crabs.


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Re:

... to very stable parts of the environment (like pelagic sharks or horseshoe crabs) tend to have much better mutation-repair chemistry. For them, mutational variation is ...

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by Dougalbod
Thu Oct 08, 2009 9:32 pm
 
Forum: Evolution
Topic: Ability to mutate is an adaptation
Replies: 19
Views: 9083

Ability to mutate is an adaptation

... to very stable parts of the environment (like pelagic sharks or horseshoe crabs) tend to have much better mutation-repair chemistry. For them, mutational variation is ...

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by Darby
Thu Oct 08, 2009 8:58 pm
 
Forum: Evolution
Topic: Ability to mutate is an adaptation
Replies: 19
Views: 9083

Why do you keep talking about species

... Polychaeta Polychaetes Phylum: Arthropoda Insects, Spiders, Millipedes, Crabs, Beetles Class: Arachnida Spiders, Scorpions Class: Insecta Ants, Bees ... surrounding a mass of sex cells about 20 Phoronida Zeus's mistress Horseshoe worms U-shaped gut 20 Placozoa Plate animals 1 Platyhelminthes ...

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by gamila
Mon Jun 29, 2009 5:35 pm
 
Forum: Evolution
Topic: Why do you keep talking about species
Replies: 23
Views: 49559

Re: What is this?

... look VERY VERY similar to trilobites. I can tell you that it is not a horseshoe crab though, we know this because trilobites have horizontal segments in the dorsal region of their abdomen region, horseshoe crabs do not. I think that the trilobite is definitely related to the trilobite. ...

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by Darwin420
Sat Apr 05, 2008 12:05 am
 
Forum: Zoology Discussion
Topic: What is this?
Replies: 6
Views: 3998

Re: Modern Dinosaurs?

... How about genetically modifying elephants into woolly mammoths, or horseshoe crabs into trilobites? Thanks. It is seems completly impossible: plan of dinosaur, that was ...

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by Locus
Sat Jan 13, 2007 10:27 pm
 
Forum: Zoology Discussion
Topic: Modern Dinosaurs?
Replies: 19
Views: 6608
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