American crocodile;Crocodylus acutus) in water, Tarcoles, Costa Rica.

crocodylus acutus natural area river stream adult alone head eye skin detail portrait high angle view costa rica look crocodylus alga wet top view vulnerable iucn) vu central american alligator crocodylus acutus cites appendix 1 august tropical species water surface nobody nature natural areas ecosystem ecosystems rivers stream adults single lonely only solo one lone heads eyes skins details portraits high angle shot overhead shots overhead shot overhead sight overhead sights overhead view overhead views looked looking algae soak soaked soaks top views top sight top sights view from above top shot vulnerable species central american alligators crocodylus acutus tropic species water surfaces watersurface watersurfaces with nobody naturalness area body of water freshwater wetland area stage of development individual enumeration general morphology morphology organism sensory system physiological system organ anatomy integumentary system close up shot central america america crocodylinae crocodylidae crocodylomorpha archosauria reptilia sauropsida tetrapoda tetrapodomorpha rhipidistia sarcopterygii euteleostomi gnathostomata vertebrata chordata deuterostomia coelomata bilateria metazoa opisthokonta eukaryota flora physical morphology threatened endangered species iucn red list of threatened species species crocodile reptile sauropsid vertebrate chordate wild animal animal convention on international trade in endangered species of wild cites water matter matter substance)