what is a reptile? - part 29 of 31. this film illustrates representative kinds of the four orders of reptiles and describes their physical characteristics, reproductive processes, and evolutionary development. discusses reasons for the reptiles' successfu - 水蛇 個影片檔及 b 捲影像00:32
tiger keelback (rhabdophis tigrinus) swimming in seongamcheon stream / jincheon-gun, chungcheongbuk-do, south korea - 水蛇 個影片檔及 b 捲影像00:19
snake eel (oocatochus rufodorsatus) fleeing in seongamcheon stream / jincheon-gun, chungcheongbuk-do, south korea - 水蛇 個影片檔及 b 捲影像00:05
tiger keelback (rhabdophis tigrinus) swimming in seongamcheon stream / jincheon-gun, chungcheongbuk-do, south korea - 水蛇 個影片檔及 b 捲影像00:20
snake eel (oocatochus rufodorsatus) attacked by korean piscivorous chub (opsariichthys uncirostris amurensis) in seongamcheon stream / jincheon-gun, chungcheongbuk-do, south korea - 水蛇 個影片檔及 b 捲影像00:13
snake eel (oocatochus rufodorsatus) swimming in seongamcheon stream / jincheon-gun, chungcheongbuk-do, south korea - 水蛇 個影片檔及 b 捲影像00:16
snake eel (oocatochus rufodorsatus) swimming in seongamcheon stream / jincheon-gun, chungcheongbuk-do, south korea - 水蛇 個影片檔及 b 捲影像00:14
looking down on long snake swimming in pool with clean blue water. building and trees in bg. "dedicated to the preservation of sea turtles" sign on tower - 水蛇 個影片檔及 b 捲影像00:07
water snakes can grow to 1.5m in length. they are often confused with venomous rattlesnakes and cottonmouths. snakes strike fear in the hearts of... - 水蛇 個影片檔及 b 捲影像01:29