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Arthropods

   Also found in: Dictionary/thesaurus, Encyclopedia, Wikipedia 0.01 sec.
Arthropods
A phylum name referring to certain insects (including mosquitoes and ticks) and spiders.


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It turns out that Hurdia had a huge three-part carapace projecting from the front of its head, unlike anything seen in other fossils or living arthropods.
That Cambrian arthropods had some sort of behavioral adaptation for coping with times out of water is not so surprising, but for them to be using shells like hermit crabs nearly 500 million years ago is amazing.
Arthropods are animals that lack a backbone and have a hard exoskeleton.
 
 
 
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