Ole Jorgen Liodden / Galapagos Ghost Crab (Ocypode gaudichaudii) fighting on the beach. Galapagos

Wild Wonders of Europe / Zankl / Ghost / Sand crab (Ocypode cursor) on beach, Dalyan Delta, Turkey, August 2009

Luciano Candisani / Ghost Crab (Ocypode quadrata) on beach, Urucuca, Bahia, Brazil

Luciano Candisani / Ghost Crab (Ocypode quadrata) on beach, Urucuca, Bahia, Brazil

Hugh Pearson / Golden ghost crab {Ocypode convexa} 80 Mile Beach, Western Australia

Phil Chapman / Ghost crab on beach at night (Ocypode sp) Madagascar

Andy Rouse / Galapagos Ghost Crab, (Ocypode gaudichaudii), emerging from burrow with volcano in background Galapagos

David Pattyn / Ghost Crab (Ocypode sp) on the beach feeding on a dead fish, Puerto Lopez , Santa Elena Peninsula, Manabi Province, Ecuador, July

Piotr Naskrecki / Ghost Crab (Ocypode sp), Vamizi Island, Mozambiqiue

Sylvain Cordier / Ghost crab (Socotrapotamon socotrensis ) Socotra Island UNESCO World Heritage Site, Yemen.

Sylvain Cordier / Ghost crab (Socotrapotamon socotrensis) Socotra Island UNESCO World Heritage Site, Yemen.

Claudio Contreras / Ghost Crab (Ocypode sp.) eating Balloonfish (Diodon holocanthus) carcass, Playa Morro Ayuta, Oaxaca state, southern Mexico, August