1·These species open a window on a croc world completely foreign to what was living on northern continents.
这些物种打开了一扇揭示鳄鱼世界的窗口，它们与生活在北部大陆上的动物完全不同。
2·This 3-foot-long croc was a plant - and grub-eater with a pair of buckteeth in the lower jaw it used to dig for food.
这种3英尺长的鳄鱼以植物和幼虫为食，它下颚上长着一对龅牙用来挖掘食物。
3·And suddenly the croc jumped out. The whole event took maybe 15 seconds.
突然间，一条鳄鱼窜出水面，整个搏斗大概持续了15秒钟。
4·Finally, the croc concedes, and the lions get their prey on dry land.
双方几经争夺，最后鳄鱼举手投降，眼睁睁地看着狮子把到手的猎物夺了回去。
5·This croc wasn't new to science.
在科学上，这种鳄鱼并不新奇。