<page_title> List of largest fish </page_title> <section_title> Largest extant fish </section_title> <table> <cell> 1 <col_header> Rank </col_header> </cell> <cell> Whale shark <col_header> Animal </col_header> </cell> <cell> 21.5 <col_header> Known maximum mass [tonnes] </col_header> </cell> </table>
The largest specimen, a Whale shark, weighed 21.5 tonnes.