The spawning of Horseshoe Crabs coincides with the migration of Red Knots who feed on the crabs eggs to gain enough energy for their onward leg to the Arctic. Other species like ruddy turnstones and sandpipers also join the feast.
Stranded Horseshoe Crab (Limulus polyphemus), Slaughter Beach. Delaware Bay.
Horseshoe Crab (Limulus polyphemus), Delaware Bay, USA