The beautiful Barrier Reef
The Great Barrier Reef is the largest organic structure of the planet stretches more than 2000 km along the northeast coast of Australia for about 23 ° latitude, going up to the Torres Strait and the Gulf of Papua, over a total area of \u200b\u200bnearly 350,000 square kilometers, is held in a nearly uniform distance of 80-100 km from the coast, from north to Townsville and further to the south leaves even up to 200 km .
is not a continuous structure, but consists of a maze of coral reefs, small islands, the channels through which they circulate strong currents, sand banks and shallow water, which emerge at low tide leaving corals.
The reef is a particular structure of limestone that forms a belt along the coastal mainland and islands in tropical seas, was formed over thousands of years with the aggregation of millions of shells of protozoa (corals, coral, sometimes calcareous algae), and especially of small polyps, which measure from 0.25 to 1.50 cm and secrete its limestone casing.
The octopus has the body-shaped bag on top crowned by a tuft of tiny tentacles, by which catch the food consists of microorganisms transported by water, and when it dies its shell is grounds for a new body, so that growing on the reef itself up to considerable depth.
barriers make it difficult access and the approach to Somalia, the New Caledonia, Australia, as he had the opportunity to experiment in 1770 James Cook on his first contact with the ill-fated Great Barrier Reef.
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