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 Date: 2007-05-10 12:11:40Horseshoe crab Atlantic horseshoe crab Crab Taxonomy Xiphosura Living fossils |
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Date: 2007-05-10 12:11:40Horseshoe crab Atlantic horseshoe crab Crab Taxonomy Xiphosura Living fossils |
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228 REPORTS FROM THE MBL GENERAL SCIENTIFIC MEETINGS Figure 1. Locomotor activity of a juvenile horseshoe crab maintained first in natural cyclic lighting and then in constant darkness. The data are double-plotted to em