The strings hanging off the dorsal fin of this Great White Shark (Carcharodon carcharias) are parasitic copepods. Photographed just breaking the surface off Guadalupe Island, Mexico

marine life animals swimming one animal endangered animals animals in the wild sea life color image horizontal body part no people underwater tropical climate surface blue gray great white shark carcharodon carcharias parasitic copepods dorsal fin guadalupe island mexico ocean pacific water reflection parasite aggressive arthropod attacking backboned carnivore carnivorous cartilaginous shark crustacean dangerous deadly elasmobranch extinction imposing invertebrate invertebrates majestic malicious maneater menacing parasitism powerful predator protected predators symbiosis symbiotic relationship threatened tropical nobody sharks grey fins aggression albimors animal archaic cagediving carcharias capensis carcharodon carnivores fish fishes chondrichthians copepod elasmobranchs elasmobranchii endangered fauna fear guadalupe hazardous marine pacific ocean protect protection shocking