Christmas Island red crab (Gecarcoidea natalis)

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Christmas Island red crab mass migration from forest to the coast

© BBC Natural History Unit
Male Christmas Island red crabs build and defend burrows off shoreline; copulate with females

© BBC Natural History Unit
Gravid female Christmas Island red crabs releasing eggs into the sea at the peak of the tide

© BBC Natural History Unit
Masses of juvenile Christmas Island red crabs return to land a month after being spawned

© BBC Natural History Unit