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| Description: Bull Shark This image is of the skin of the bull shark, an aggressive species that can tolerate fresh water and is thought to be responsible for many near-shore attacks. Shark skin is made of tiny scales known as dermal denticles that can be seen here. The scales give shark skin a very rough, sandpaper-like texture, make it very strong. The scales help streamline the shark by moving water through the grooves in the scales to reduce turbulence. Picture Stats: Views: 813 Filesize: 142.24kB Height: 461 Width: 660 Source: https://biology-forums.com/index.php?action=gallery;sa=view;id=9247 Keywords: bull shark |