HORSESHOE CRAB BLOOD A MIRACLE IN MODERN - AN OVERVIEW

Horseshoe crabs are evolutionary survivors that have remained rather unchanged in appearance for 350 million decades. The horseshoe crab will not be really a real crab, but a member of the historic team of arthropods, intently related to spiders and scorpions.A lifeless horseshoe crab lies upside down about the Seaside in Assateague Island, Md. Jaa