SCHIFFMAN: The students are looking through microscopes at a squirming green hydra and other tiny organisms. At a nearby table there are larger pond animals: snapping turtles, frogs and crayfish.

• 斯齐夫曼：这些孩子正通过显微镜看一个正在蠕动的绿色的水螅和其他细小的生物。在旁边的桌上有更大的水生生物，蛇鳄龟，青蛙还有小龙虾。