These two species, the horseshoe crabs and red knots' interdependent relationship has become a Delaware Bay attraction for tourists, hobbyists and scientists alike as it hosts the largest staging area for shorebirds in the Atlantic Flyway and is the second largest "fueling" site in North America, according to the Ecological Research & Development Group (ERDG).

Visit the shores of the Delaware bay from now until mid-June to catch a glimpse of this remarkable relationship...low tide is usually the best time to see the most crab action.

Remember to Just Flip 'Em when you see a horseshoe crab stranded on its back. They don't bite or sting! Promise!

This map shows where horseshoe crabs have been sited around the world. Map courtesy of horseshoecrab.org.