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• Language: unknown
• Subjects: Arctic
• Online Access: http://cdm16250.contentdm.oclc.org/cdm/ref/collection/p16250coll9/id/314

[photo] However strong their immunity and defenses sometimes it isn’t enough; this picture taken off the coast of South Africa of a Great White shark with a tumor protruding from her mouth. It is unclear if the tumor is malignant or benign. This observation further dispels the myth that sharks are immune to cancer. Yet the rarity of this occurrence only raises more questions about their biochemical makeup. (23) Stemming from the evolution of the Acanthodes bronni (the first true sharks), 440 known species of sharks developed. All possessed varying traits and abilities, but each shark remained entirely unique. These species have dominated their ecosystem and subsequently lived in every sea-based environment (as well as some freshwater locations). From the warm shallow tropics to the deep open seas, they most surprisingly even adapted to the sub-freezing waters of the Arctic 11 | P a g e