Dawn of the Devil-Tigers
Though it is quite large, Isla Nublar initially appears to be completely uninhabited. This is because the island is almost entirely a salt marsh and only deep inland can any freshwater be found. Once travelers have made their way that deep through the treacherous marsh they discover a war brewing between the native people of Isla Nublar and aquatic lizard men who moved onto the island just a generation ago. The two peoples battle each other with some frequency although the humans rely on wyld mutant slave warriors to fight and the lizard men are largely feral with only a handful of civilized members unable to undo the hostility created by their savage brethren.