Extreme close up shot of a wild mertens' water monitor, varanus mertensi basking on rock motionlessly at daytime, endangered wildlife species endemic to northern Australia

mertens water monitor varanus mertensi animal reptile wild wildlife species lizard northern australia endemic predator habitat aquatic environment endangered conservation zoo threatened scale skin creek camouflage fauna nature natural basking shore coastal goanna park territory national litchfield rest relax lagoon australian waterway western swamp exotic tropical reptilian still reserve