Well Hello!So now i'm going to tell you about red crab migration phenomenon.This phenomenon is include to a biological natural phenomenon because it tells the life cycle of this species.Maybe some of you don't know,so i will try to make this writes clear to read for you.
This phenomenon is most happen in Christmas Island in Australia.Red crabs are native to Christmas Island, Australia. The central plateau of Christmas Island is dominated by strands of rain forest.
The island has a tropical climate and experiences both a wet season
(December through April) and a dry season (May through November).
More than 120 million red crabs can be found on the rain forest floor of Christmas Island. Red crabs live alone in dirt burrows, or deep rock crevices.
Crabs stay in the shade of their dwelling for most of the year. In
October or November, when the wet season is about to return, crabs begin
their migration to the shore. This timing coincides with the lunar cycle and the tides.
The crabs will start their migration if there is enough time for them to
complete their downward migration, mate and develop eggs before the
next suitable spawning date.The first action that occurs is movement of
crabs to the sea. The largest mass movement of crabs takes place in this
first downward migration. Males farthest inland start this movement and
are progressively joined by more and more crabs (both males and
females) as the movement progresses toward the sea.When the crabs arrive
at the shoreline, they dip in the sea to replenish body moisture and
I think that is all that i can share about this passage.Thx