what is an amphibian? - part 8 of 18. illustrates the body structure and life process of amphibians and shows how they are adapted to live in water and on land. presents the development of an amphibian from egg to maturity and traces the origin and evolut - 進化 個影片檔及 b 捲影像00:30
world map technology background, big data visualization, digital grid business concept - 進化 個影片檔及 b 捲影像00:15
polygonal dna background. biotechnology space concept. blue wire style structure. - 進化 個影片檔及 b 捲影像00:25
skeleton of "lucy" is on display at the national museum of ethiopia on may 14, 2022 in addis ababa, ethiopia. "lucy", the celebrated skeletal remains... - 進化 個影片檔及 b 捲影像00:50
chinese researchers study the lunar samples brought back by the chang'e-5 mission on october 19, 2021 in beijing, china. the youngest rock on the... - 進化 個影片檔及 b 捲影像01:15
blockchain and cryptocurrency concept, motion graphic abstract background, digital technology futuristic design - 進化 個影片檔及 b 捲影像00:15波浪型
episode b-05] greatest headlines of the century title sequence / title: "scopes trial ends" with photo of judge john t. raulston reading from the... - 進化 個影片檔及 b 捲影像03:24
1914 b/w wide shot cavemen with weapons entering cave and attacking cavewomen and boys - 進化 個影片檔及 b 捲影像00:40打交
1914 b/w wide shot caveboys hitting and chasing each other around cavewoman in cave - 進化 個影片檔及 b 捲影像00:29
smoke from dry ice and water leaking from a flask on black background and the reverse - 進化 個影片檔及 b 捲影像01:39
