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Hullback: Difference between revisions
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The '''hullback''' split from its ancestor, the [[
One major adaption is that it now floats on its back. Both males and females have these new hull-like backs that are hollow and keep them afloat on the water surface. One of their spikes now acts as a keel for their shell and a 2nd spikes acts as the front bow. Males and females are now the same size and have no sexual dimorphism.
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