And why can't this mighty brazil nut tree survive without an orchid and this nimble little rodent?

为什么这种看似十分强壮的巴西胡桃树离开了兰花和这种小啮齿动物就活不了？

But what has all of this got to do with our story of brazil nut trees and agoutis?

这个又跟巴西胡桃树有什么关系？跟刺鼠有什么关系？

That's why the brazil nut needs the orchid.

这就是为什么巴西胡桃离不开兰花的原因。

And this is a brazil nut pod.

这个实际上是巴西胡桃的外皮。

Once a year, the tips of the brazil nut tree branches are adorned with large white flowers.

巴西坚果树每年开一次花，树枝被白色花朵装饰了起来。

Now, the brazil nut tree needs the agouti, way down there, to disperse the seeds.

巴西胡桃树需要地面上的刺鼠散播种子。

Because quite naturally, this has come from a brazil nut tree.

这个是从巴西胡桃树上摘下来的。

This little orchid is absolutely essential to the brazil nut.

这株小兰花对巴西胡桃树至关重要。

The story of why the brazil nut needs the orchid is extraordinary.

至于为什么巴西胡桃离不开这种花，说起来很离奇。

So I have to eat, like, two giant handfuls of nuts, walnuts or cashews or pecans or brazil nuts, and then meat.

所以我必须吃，比如，两大把坚果，核桃或腰果或山核桃或巴西坚果，然后是肉。

This tall and ancient brazil nut tree produces nuts that we can eat; these water lilies are big enough to lie down on.

这棵高大古老的巴西坚果树生产出可供我们食用的坚果；这些睡莲大到可以躺在上面。

The agouti is the only animal that can disperse the seeds of the brazil nut tree, so the brazil nut tree is completely reliant on the agouti.

拉美刺鼠是唯一能够帮助巴西胡桃散播种子的动物，因此巴西胡桃完全依赖这种动物。

The intricate relationship between the male orchid bee and the flowers is the reason that brazil nut trees like this one can only grow in intact rainforest ecosystems.

雄性兰花峰和花朵的关系是巴西胡桃树为什么只能在原始的热带雨林生态中生长的原因。

These may include bananas, which can contain a radioactive isotope called potassium-40, and brazil nuts, which can have radium levels over 1000 times what you might see in other foods.

其中可能包括香蕉（含有一种名为钾 40 的放射性同位素）和巴西坚果（其镭含量是其他食物中的 1000 倍以上）。

And you know, I can guarantee that every brazil nut that you've ever cracked open has come from a tree that was planted by one of these animals.

嗯，我敢打赌，你吃的每一颗巴西胡桃，都是从刺鼠埋下的种子长成的大树上结出的。

This selective door policy is the tree's way of ensuring that it will only be used by insects which are guaranteed to visit other brazil nut tree blooms and then pollinate them.

胡桃树用这种选择性的进入门槛，确保进入自己花朵的蜜蜂有能力进入其他的胡桃花并完成授粉。

So all in all, you're probably fine to keep munching on those brazil nuts and bananas Or if you're like Triangle Bob I guess eat a giant thing of radioactive waste?

所以总而言之，你可能可以继续咀嚼那些巴西坚果和香蕉，或者如果你像三角鲍勃一样，我想吃一个巨大的放射性废物？

So all in all, you’re probably fine to keep munching on those brazil nuts and bananas Or if you're like Triangle Bob I guess eat a giant thing of radioactive waste? Don't do that.

所以总而言之， 你可能会继续咀嚼那些巴西坚果和香蕉，或者如果你像 Triangle Bob， 我猜想吃了一大堆放射性废物？ 不要那样做。