a large saltwater crocodile lurking in a muddy brown river in borneo

animal aquatic australia australian big borneo brown carnivore creature croc crocodile crocodiles crocodylus danger dangerous deadly estuarine eye eyes head indonesia jaws jungle kinabatangan lurking malaysia mouth muddy murky natural nature northern park porosus predator rainforest reptile river sabah saltwater sarawak skin snout swamp teeth territory tropical water wild wildlife