Horseshoe crabs (limulidae) play a major role in our ecosystem, health studies and basic lives; which is why there are many ongoing conservation programs for this species and the bays where they come ashore to lay their eggs. Horseshoe crabs play a major role in the ecosystem by providing numerous other animals with food, many of which are migratory birds or sharks. these crabs spawn on Delaware beaches during the spring full moons, with the largest spawning site being the Inland Bays. The most prominent of the migratory predators is the Red Knot (Calidris Canutus) which travels down the eastern US coast and gets most of its major nutrients from the horseshoe crab eggs. the major source of food for the horseshoe crab is bivalves