Amazing Horseshoe Crabs with Blue Blood (20 pics)

Posted in ANIMALS       16 Aug 2011       27536

Horseshoe crabs are an example of creatures that inhabited our planet some 230 million years ago. They have not changed a bit over time. They can be easily recognized by their straight rigid tail and hard shell that reminds of a military helmet.

 

Amazing Horseshoe Crabs with Blue Blood
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