But the really important thing about hippo dung is its place in the food chain.

但河马粪便真正重要的意义于物链中的地位。

They're now widely available at fast food chains.

现，它们快餐连锁店里随处可见。

It's at the top of a huge food chain.

它位于一条巨大物链的顶端。

We were the bottom of the food chain.

我们处于物链的底层。

When it's washed, it releases microplastics into the ocean, into the food chain, into us.

当它被洗涤时，会释放塑料微粒进入海洋，进入物链、进入我们体内。

From bees to dogs, we're moving up the food chain today.

从蜜蜂到狗，我们今天正向物链的上端移动。

Burger king is not the first fast food chain to offer meatless patties.

汉堡王不是第一家提供素汉堡的快餐连锁店。

It stays in the fish's body, and it enters the food chain.

它会留鱼的体内，并进入物链。

If that happens, the entire food chain will be severely damaged.

如果这种情况发生，整个物链将遭到严重破坏。

Every day they're dealing with predators, up and down the food chain.

它们每天都和捕者打交道，物链的上游和下游。

In such a frugal environment, the pika's farming helps to kick start the food chain.

如此俭朴的环境，鼠兔的耕作有助于推动整个物链。

Sharks' position at the top of the food chain affects the entire ocean ecosystem.

鲨鱼物链顶端的位置影响着整个海洋生态系统。

Setting no limit to the number of fast food chains.

不限制快餐连锁店的数量。

You're a little low on the food chain to...

你这物链底层的没资格顶嘴。

So certain food chains actually became stronger after the fire than they were before.

所以，大火过后，相应的物链会变得比之前更加稳定。

Once in farm animals, they become part of the food chain.

一旦农场动物使用抗菌素，那么抗菌素也会成为物链的一部分。

It's generally considered the second fast food chain and the first hamburger chain.

它通常被认为是第二家快餐连锁店和第一家汉堡连锁店。

Can't forget the bottom of the food chain, right?

不能忘记物链的底层，对吧？

If the trend continues, entire food chains and webs may be at risk.

如果这种趋势继续下去，整个物链和网络都可能面临风险。

Living at the top of the food chain, sharks can accumulate dangerous levels of methylmercury.

因为生活物链的顶端，所以鲨鱼可以积累达到危险水平的汞。