Christmas Island is a small Australian island in the Indian Ocean, 2,600 kilometers northwest of the city of Perth, that is home to many species of animal and plant.

The island is particularly noted for its prodigious populations of Christmas Island red crabs, a species of land crab that is endemic to the island, and their spectacular migration from the forest to the coast each year during the breeding season.

Christmas Island red crabs eat mostly fallen leaves and flowers, but will occasionally eat other animals, including other red crabs if the opportunity arises.