Marine biologist Forrest Galante has filmed himself swimming with sharks . He dived off the coast of Mexico with the giant whale shark for a study . The whale shark can grow to more than 44ft but only feeds on plankton .
Marine biologist Forrest Galante has filmed himself swimming with sharks . He dived off the coast of Mexico with the giant whale shark for a study . The whale shark can grow to 44ft but only feeds on plankton .