We are now near Darwin, at the north end of Australia. More bugs, more snakes and now the largest crocodiles in the world, up to10 meters in length. This is a replica of SHREDDER, who is about 8 meters long and still alive in the river where we took our jumping crocodile tour. Each male croc has between 25 and 50 female crocs in his harem. Crocs can smell through the water, sense motion and hear for many miles around. One guy fell in the croc infested river and was rescued 800 meters downstream. He remained perfectly still by floating, and is now known as Calm Jack.