This desert grass hopper does a perfect imitation of a rock.

这只沙漠蚂蚱能完美地模仿石头。

Many animals jump, from sand fleas to grass hoppers to kangaroos and they launch their bodies into the air with a single stroke of their muscles.

许多动物都会跳跃，从沙蚤到草蜢再到袋鼠，它们只需轻轻一击肌肉，就能将身体抛向空中。