David Attenborough narrates the remarkable story of the 130 million crabs who cross Christmas Island to spawn on the coast.

Situated on the Indian Ocean, south of Java, Christmas Island is dominated by land crabs of all shapes and sizes. There are robot-like blues, jungle dwelling hermits, and mighty robbers with claws like wire cutters. But most spectacular of all are the swarming hoards of red crabs which scuttle to the coast to spawn, generating one of the most awesome events in the animal kindgom. Show less