00:36 Christmas Island is only around one hundred thirty five square kilometres and was named after the day of its discovery, December 25 1643, by captain William Mynors of the Royal Mary.
00:52 Christmas Island was formed by a series of geological uplifts.
00:58 The structure of the island is comparable to a wedding cake with the central plateau at two hundred meter above sea level and a number of cliffs and terraces descending to a rugged shoreline with few beaches.
01:13 Sixty three percent of the island is a protected Australian national park.
01:19 The park offers the perfect forest eco system for the Christmas Island red crab which is endemic to the Cocos Islands and Christmas Island, both in the Indian Ocean.
01:34 They try to keep a low profile under the forest canopy most of the year.
01:42 The annual Christmas Island crab migration is legendary. Each rainy season these crustaceans leave their inland burrows and head to the sea to spawn.
01:54 What makes this migration legendary is that the red crab is the most abundant of the fourteen species of land crabs on the island with an estimated one hundred twenty million inhabitants.
02:08 They will have to cross treacherous terrain, traffic, the risk of dehydration and the rocky battered shores.
02:21 The males lead the way and are joined by the females, but they won't mate until they reach their breeding terraces by the shore line.
** Created for Mrs 최현숙 at SongJong Middle School
No comments:
Post a Comment