Australien Sharks

During our travel in Australia, we haves already seen a sharks in the ocean. We have discoreved only five species the more dangerous. We at have been in a frame touristic but unfortunately the sharks have been also used for leathers goods, cosmetics, alimentations and in the captivity. The sharks not been used a good knowledge because they been indispensable for ecosystem. They been in all the oceans from the world, gather in 35 famillys with 465 species. Their size varied intro 14cm (Etmopterus perreyi) and 20m (whale-requin).