On Christmas Island, Australia, between 50 and 120 million red crabs cross the island to join the sea to breed once a year.

During this long journey, many crabs die on the road; mainly because of traffic. But some people who take care of animals had the great idea to build a large bridge in the manner of a viaduct in order to protect crabs from cars during their migration and save thousands of crabs!

What a great idea!

Source and photo credit: Bored Panda

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