Scientists have found that the whale shark, which grows up to 18 metres in length, is the world’s largest omnivore after a new discovery that a type of seagrass is a significant source of nutrition for the gigantic fish.
Up until now the creature was thought to be a filter feeder, observed eating tiny organisms like plankton, krill, crab larvae, tiny squid or fish, say researchers including those from the Australian Institute of Marine Science.
