sentence: Sharks can actually suffer from cancer.
sentences_after: The myth that sharks do not get cancer was spread by the 1992 book 'Sharks don't get cancer' by I. William Lane. Extracts of shark cartilage was sold as cancer prevention treatments. Reports of carcinomas in sharks exist, and current data do not allow any speculation about the incidence of tumors in sharks.
concept_name: shark
headings: Common misconceptions Science Biology
categories: Society Lists Knowledge