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AH_Dogfish Shark Skin SEM Close Up Detail_2001.jpg
Dermal denticles on a Dogfish shark {Scyliorhinus sp}. These tooth-like structures on the skin of sharks and rays afford protection from predators and ectoparasites. They are also speculated to reduce drag whilst swimming. False-colour scanning electron micrograph (SEM) x56 magnification when image printed 10cm across.