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 red crabs, a species of land crab that is endemic to the island, and their legendary migration from the forest to the coast each year during the breeding season.
Although restricted to a relatively small area, it has been estimated that 43.7 million adult red crabs lived on Christmas Island alone,but the accidental introduction of the yellow crazy ant is believed to have killed about 10–15 million of these in recent years.
