Whale sharks, the largest in the world of sharks, can reach body lengths of up to 17m.
Whale sharks are the largest sized species today, they move quite slowly.
Six-bearing sharks have a body length of about 3.5-4.8m, many of the fish they are close to are extinct.
Sharks have a body length of about 1-2m with a flat body, extending in the pelvic and pelvic fins.
Megalodon sharks are the largest shark in history, they have a body length of up to 14-18m, unfortunately the shark is extinct long ago.