大象传媒

Tens of millions of red crabs have covered roads and bridges on Christmas Island as they undertake their annual migration. The island is an Australian territory located south of Java in the Indian Ocean.

The crabs are travelling from the forest to the coast to spawn, the migration beginning shortly after the first rainfall of the wet season.

Special "crab bridges" have been built to protect them en route and the locals have devised ingenious ways to keep the crabs from harm - such as a snow plough-like device for the front of vehicles to gently brush them aside.

Chris Bray owns an eco lodge on the island: "It's like being in the middle of a David Attenborough documentary", he told Newsday. "One day you just wake up and there's crabs everywhere."