The annual red crab migration on Christmas Island has begun.
Every year during the wet season around October or November, the vivid scarlet creates head out of the rainforest to the sea to spawn.
The males lead the parade, followed by the females.
Remarkably, they’re guided by the moon.
“Red crabs always spawn before dawn on a receding high-tide during the last quarter of the moon. Incredibly, they know exactly when to leave their burrows to make this lunar date,” National Parks Australia said.