Why are there so many red crabs on Christmas Island?

Early inhabitants of Christmas Island rarely mentioned these crabs. It is possible that their current large population size was caused by the extinction of the endemic Maclear's rat, Rattus macleari in 1903, which may have limited the crab's population.



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Christmas Island had a population of 1,692 residents as of 2021, the majority living in settlements on the northern edge of the island.

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Also known as the coconut crab, the robber crab is the world's biggest land crustacean.

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Christmas Island began appearing on the charts of English and Dutch navigators from the early 1600s. But it wasn't until 1643 that Captain William Mynors of the British East India Company named the island after sighting it on Christmas Day.

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Since the detention centre was built on the island in 2006, the island population of about 1,500 locals has jumped dramatically. Mr McDonald says the cost of living is now estimated at about 180 per cent above that on the mainland. An iceberg lettuce at the local store can cost as much as $12.

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There are numerous holiday homes available for short-term stays on Christmas Island. They are a great option for families and larger groups, and having your own kitchen means you can make your holiday budget go further by not eating out.

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