The largest predatory shark in today’s oceans, Great White Sharks date back over 16mya. Some scientists suggest that during this time period, the teeth and physical make up of the Great White Shark s was not that different when compared to the larger prehistoric Megalodon. However arguments for a closer resemblance to today’s Mako sharks do exist. Great White sharks can be found in almost all coastal and offshore ocean waters, and these sharks have a large temperature distribution from 54 to 75 degrees Fahrenheit. Great White sharks have accounted for more fatal attacks on humans than any other species. Despite this, they are the most popular target species for “shark tourism” activities such as large diving. Great White sharks can grow to over 20 ft in length and reach over 4,000 lbs!