About the Show
With its armoured shell, ancient anatomy and 350-million-year lineage, the horseshoe crab seems too inconspicuous to stir up trouble. Yet it is at the centre of a struggle between 3 different species.


Never miss a Nat Geo moment

Your email address
We use our own and third-party cookies to improve our services, personalise your advertising and remember your preferences. If you continue browsing, or click on the accept button on this banner, we understand that you accept the use of cookies on our website. For more information visit our Cookies Policy AcceptClose cookie policy overlay