looking at reptiles - part 16 of 20. differentiates reptiles from other creeping forms through body structure, respiratory system, and manner of egg laying. emphasizing adaptation, the film brings out the fact that reptiles were the first vertebrates to - 脫落 改變形式 個影片檔及 b 捲影像00:31
ms shot of 2 massive bull moose (alces alces) confront each other as the bloody velvet hangs from their antlers / ward, colorado, united states - 脫落 改變形式 個影片檔及 b 捲影像00:10
ws view of 2 massive bull moose (alces alces) confront each other as the bloody velvet hangs from their antlers / ward, colorado, united states - 脫落 改變形式 個影片檔及 b 捲影像00:42
grasshoppers trick stains on leaves because insects have hard body shells. the body's growth is therefore limited. when the body grows until it's cramped insects cannot continue to grow. - 脫落 改變形式 個影片檔及 b 捲影像00:06
cu snake, side view of head on straw beginning to shed skin, loose transparent eye goggle, sequence - 脫落 改變形式 個影片檔及 b 捲影像00:26
what is a reptile? - part 31 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 - 脫落 改變形式 個影片檔及 b 捲影像00:35
massachusetts congressman jim mcgovern says the process for immigration reform bills was insane, house speaker paul ryan had refused to consider the... - 脫落 改變形式 個影片檔及 b 捲影像01:09
