Do we owe our recovery from Covid to the horseshoe crab? Yes, we do. The animal provided the key ingredient in the Covid vaccine. Lyle resident Adrian Bradford recalls his life back east with fondness for the sea critters. In the photograph, Bradford, left, with his nephew, Carl Bradford observing horseshoe crabs on the beach. Carl is a local naturalist/master woodworker. The horseshoe crab’s blood, extracted and the crab released after, is used in vaccines because of its remarkable immune cells. If you’ve had your vaccine, you have the horseshoe crab to thank.