Crocodile float lurk in murky river with head emerge above water surface

crocodile float lurk murky river water emerge head surface submerge above gathering to be fed body under pose semisubmerged green swamp fresh freshwater poking out afloat scary snout insidious beneath crocodylus niloticus nile crocodile rise habitat wetland brackish appear ascend still muddy partially watchful group waiting motionless smooth movement eyes floating amphibian crocodiles wild marsh