Researchers had trios of sticklebacks with known personalities play follow the leader.

研究人员将已知性格的三只刺鱼分为一组，观察它们追随领导者的情况。

But a new study of fish called sticklebacks shows that shy individuals actually prefer to follow fish that are similarly timid.

但是一项有关刺鱼的新研究表示，害羞的鱼类更喜欢追随同样胆小的鱼。

And so maybe our action-planning systems also prefer the single stickleback.

因此也许我们的行动计划系统也更喜欢单条刺鱼。

And so the low-armored sticklebacks actually grow faster than the fully-armored sticklebacks.

因此，低甲胄的刺鱼实际上比全甲胄的刺鱼生长得更快。

For those unfamiliar, bonefish are elusive, fast, and apparently  great for testing one's patience.

对于不熟悉的人来说，刺鱼难以捉摸、速度极快，显然是考验人耐心的绝佳对象。

Now eventually if fully-armored and low-armored sticklebacks can't interbreed then we have those as a separate species.

最终，如果全副盔甲和低盔甲的刺鱼无法进行杂交，那么我们就可以将它们视为两个独立的种。

The fish were placed in a tank that had some plastic plants at one end and some food hidden at the other.

刺鱼被放在一个水箱里，水箱的一头有一些塑料植，另一头藏有一些食。

This would be a low armored stickleback and it's found usually in a fresh water environment.

这是一条低甲胄的刺鱼，通常生活在淡水环境中。

And so this would be what we call a fully-armored stickleback.

因此，这就是我们所说的全副武装的刺鱼。

So there are plates on the side of the stickleback that go all the way back here.

所以，刺鱼的身体两侧都有骨板，一直延伸到这里。

And then if I get rid of the coloring that would be a low armored stickleback.

然后，如果我去掉这些颜色，就会得到一条低盔甲的刺鱼。

So they killed all the sticklebacks.

于是他们把所有刺鱼都消灭了。

And so what we had in here was fully-armored sticklebacks.

所以我们这里有的是全身披甲的刺鱼。

Eventually they started to notice hey there are fully armored sticklebacks in here.

最终，他们开始注意到：“嘿，这里有一些全身披甲的刺鱼。”

Their numbers started to drop off and then they started to see an increase in the low-armored stickleback.

它们的数量开始减少，随后他们发现低甲胄的刺鱼数量有所增加。

A preliminary study of a shoal often flesh-and-blood sticklebacks shows that they do indeed mingle with the robot and that they follow its leadership cues as predicted.

对一个有十条真实刺鱼鱼群的初步研究显示，他们确实接纳了那条机器鱼，并且接受它的领导指示。

In other words their population started to increase to the point where if you go to Loberg Lake right now you are going to find almost all of the low-armored sticklebacks and not many of the fully-armored.

换句话说，它们的数量开始增加，以至于如果你现在去洛伯格湖，你会发现几乎全是低盔甲的刺鱼，而全盔甲的刺鱼数量则不多。