Head to tail close up shot of an exotic mertens' water monitor, varanus mertensi basking on rock in a freshwater environment 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 fauna natural basking shore goanna park territory national litchfield rest relax lagoon australian western swamp exotic tropical reptilian reserve lone pine koala sanctuary stream freshwater queensland