20 Of The Earth’s Most Incredible Natural Phenomena

Red Crab Migration

Credit: Explorra.com

The annual red crab migration isn’t a move from land to the chef’s kitchen, but rather a massive migration of adult red crabs from the forest to the coast to breed and release eggs into the sea. It’s a yearly spectacle found only in Christmas Island.

Circumhorizontal Arcs

Credit: CargoCollective.com

Circumhorizontal arcs are natural atmospheric formations which result when light from the sun or the moon hit the plate-shaped ice crystals suspended in the atmosphere. They typically occur in cirrus or cirrostratus cloud formation.

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