Annually, tens of millions of tiny red crabs spawn in the water off Christmas Island before migrating towards its native forests, in a dazzling phenomenon of wriggling red crustaceans. On January 9, scientist Mark Holdsworth shared footage of the crabs emerging from the water en masse and starting their march on Christmas Island’s forests. According to Parks Australia the adult crabs leave the forest for the sea to spawn at the beginning of the wet season. The baby crabs must then begin their own march back to the forest floor to start the cycle again.
