β Scribed by Fredericks, Anthony
No coin nor oath required. For personal study only.
Horseshoe crabs have ten eyes, five pairs of walking legs, a heart half the length of their bodies, and blood that may one day save your life. They have been on this planet for 445 million yearsβsince long before the dinosaurs arrived. They have been used as fertilizer and as bait, their eggs are a critical food for migratory birds, and their blood is a major comΒponent in tests for medical contamination. Join science writer Anthony D. Fredericks as he travels from the Delaware Bay to the Florida PanΒhandle on a quest through the natural history and science behind one of natureβs oldest and oddest survivors.
π SIMILAR VOLUMES
Horseshoe crabs, those mysterious ancient mariners, lured me into the sea as a child along the beaches of New Jersey. Drawn to their shiny domed shells and spiked tails, I could not resist picking them up, turning them over and watching the wondrous mechanical movement of their glistening legs, arti
## Abstract Coagulogens prepared from four species of horseshoe crabs, __Tachypleus tridentatus, Tachypleus gigas, Limulus polyphemus__, and __Carcinoscorpius rotundicauda__, were comparatively studied on their biochemical and immunological characteristics. Each coagulogen had a molecular weight of