australian saltwater crocodile crocodylus porosus

alligator amphibian animal animalia asia australia australian big caiman carnivore creature crocodile crocodylinae crocodylus danger dangerous deadly endangered estuarine evolution fauna gharial herpetology hunter indopacific jaws large marine micronesia nature organism porosus predator reptile river saltie saltwater sea semiaquatic skin southeast species teeth tropical tropics water wetlands wild wildlife zoo zoology