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How do 50 million crabs cross the road? By bridge of course!

Published on: 15th December, 2015 | Conservation
Photo credit: Christmas Island crab bridge - Kirsty Faulkner
On January 6, Christmas Island is expected to be covered in wave of scuttling red crabs making their way from their burrows in the rainforest, across whatever houses, golf courses or roads are their path, to their spawning sites on the island’s beaches.

 At one site, a 5m | 16ft high bridge has been built to assist the crabs to cross the road without becoming squashed flat by passing traffic. Elsewhere on the island, underpasses have been built and barriers erected, all to reduce the chance of Christmas Island’s roads becoming a mess of crab paste.

This mass migration is turning into a tourist spectacle. It’s one of the rare occasions where it’s far more exciting to be on land to catch sight of an impressive crab specimen than diving the spectacular tropical reefs!
The original article ‘Forget Sydney and San Francisco, Christmas Island crab bridge helps migrating critters beat the traffic’ by Angus Sargent is available here.


Emma McIntosh

TDI Adv. Nitrox & Deco. Procedures. IANTD Cavern Certified. PhD Candidate in Ecology