Every year in late spring, Australia’s Christmas Island
becomes covered in crabs when the more than 40 million red crustaceans
that call the northwest island territory home start their annual
migration to the sea, covering the landscape in a mass of crimson claws.
The migration starts with the first heavy rains in October, November or
December. At that point, there’s enough moisture in the air for the
large crustaceans, which can reach up to 11cm across, to make the
arduous, five-day journey from their homes in wet inland forests to the
Indian Ocean, covering up to 9km along the way.
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