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1 .<-NARRATOR:-> Now listen to part of a lecture in a biology class.
1 .<-MALE PROFESSOR:-> I know some scientists who were observing snakes, in the wild.
2 .And they witnessed an encounter of this sort between two rattlesnakes.
1 .As you may know, rattlesnakes eat various kinds of small animals-small animals that live underground, in burrows, in little holes in the ground.
你可能知道, 响尾蛇吃各种各样的小动物。住在地下的小动物, 在洞穴里, 在地上的小洞里。
2 .And what these scientists saw was, these two rattlesnakes had found the same hole,
3 .and both wanted to eat whatever food was in that hole.
1 .So what happened was,
2 .the two rattlesnakes faced each other...
3 .and then they lifted their bodies into an upright position and made themselves as tall as possible...
4 .and then they started pushing each other, kind of wrestling with one another,
5 .each snake trying to gain control of the other snake.
6 .And what's interesting
7 .is that, during all this pushing and shoving and maneuvering,
8 .neither snake ever tried to bite the other snake,
9 .neither snake ever tried to injure the other snake.
1 .So then, after this went on for a while,
2 .one of the snakes
3 .finally gained control of the other snake,
4 .pushed it to the ground and held it there.
5 .At that point, the snake that was on top
6 .could have easily bitten the other snake.
7 .But it didn't-
8 .instead, it just released the other snake,
9 .just let it go.
10 .The snake that had lost
11 .just slithered away...
12 .and the snake that had won went down into the hole to look for food.