Horseshoe Crab Blood
You dont survive for 450 million years without learning a trick or two.
Horseshoe crab blood. Behind its legs the horseshoe crab has book gills which exchange respiratory gases and are also occasionally used for swimming. As in other arthropods a true. Heres how one drug developer harvests horseshoe crabs and turns their blood into tests for impurities in pharmaceuticals. A comprehensive exploration of horseshoe crab natural history anatomy and conservation.
Contains research and educational material plus collections of poems images. Horseshoe crabs common along the delaware coast have evolved little in the last 250 million years. Still they have survived because of their hard curved shells. The horseshoe crab limulus polyphemus is a living fossil.
Forms almost identical to this species were present during the trias.