The Rainbow Mountains in China’s Danxia Landform Geological Park are formed from layers of different colored sandstone and minerals pressed together over 24 million years and buckled up by tectonic plates.
Red crabs in Christmas Island
Each year over 120 million red crabs swarm Christmas Island on their way to the Indian Ocean to breed. Authorities close most of the island’s roads during the migration, which normally takes at least a week.
Various species of phytoplankton are known to bioluminesce; when washed ashore by the tides, their chemical energy is turned into light energy.