When released from the threat of predation, then, females tend to be gaudier.

一旦没有天敌威胁，雌性就变得更花哨。

It's hard to watch these predations, but death is a crucial part of the natural cycle.

这样捕食画面让人心酸，但死轮回大自然一种循环。

From an evolutionary perspective getting out there and mating would increase the odds of predation.

从进化角度来看，外出交配会增加被捕食几率。

Many insects, for example, use flight to avoid predation.

例如，许多昆虫通过飞行来躲避捕食。

The dataset included almost 100 predation events.

该数据集包括近100个捕食事件。

I collect photo identification data, predation data, social and behavioral, as well as genetic data.

我收集它们照片识别数据、捕食行为、社交和行为数据以及遗传数据。

And finally, predation is a more likely reason for the uneven pattern of otter decline.

最后，捕食更有可能水獭下降分布不均原因。

The Columbia Basin Pigmy Rabbit feeds on sagebrush almost exclusively in the winter, and the loss of its sagebrush-rich habitat to agricultural development and wildfires is one of the main reasons it was declared extinct, along with predation.

哥伦比亚盆地侏儒兔几乎只在冬天以树为食，农业发展和野火失去了它丰富树栖息地，这它被宣布灭绝主要原因之一，还有捕食。

The larger a shoal is, the smaller is the proportion of it that needs to know what is actually going on for it to feed and avoid predation effectively.

鱼群越大，需要知道接下来做什么才能有效觅食和避免危险“领导”比例就越小。

Rewilding, as I said, about bringing back the ecosystem and for lions being an apex predator quite clearly one of the main roles is the role of predation.

就像我说，重新野化，为了恢复态系统狮子作为顶级掠食者——很明显其中一个主要角色就捕食。

The brain structure of Albertosaurus would tell us it was able to do ambush predation, it probably had the brain power to be a pursuit predator.

阿尔伯特龙脑部结构告诉我们它能够进行伏击掠食，它很可能有足够脑力成为追击掠食者。

In Australia, there were these thylacines. There are these marsupial lions, and I think a big body size would have enabled them to escape predation.

澳大利亚有袋狼，也有袋狮，我认为雷鸟巨大体型可以让它们逃脱被捕食命运。

But unlike snakes and other animals that use venom primarily for predation and defence, the platypus uses its venom for a different reason.

但与蛇和其他主要利用毒液捕食及防御动物不同，鸭嘴兽使用毒液另有他因。

So what we are studying now is whether natural selection imposed by predation could explain the occurrence of iridescence in prey animals.

“因此，我们现在正在研究，捕食所施加自然选择否能解释猎物身上出现彩虹色原因。”

We're looking at the overall health of each fragment for any signs of predation or disease and bleaching signs as well.

我们正在查看每个小珊瑚礁整体健康情况，看否有任何被捕食或疾病迹象，以及白化迹象。

Which is why researchers set out to look for proof that human predation played a role in the demise of Genyornis.

因此研究人员们搜集证据，希望找出远古人类捕猎对这种巨鸟灭绝产影响。

The study of coprolites tells you key information about an animal's diet and predation habits.

对粪化石研究告诉了我们关于动物饮食和捕食习惯关键信息。

There are these marsupial lions, and I think a big body size would have enabled them to escape predation.

还有这些有袋狮，我认为大体型能让它们躲避捕猎。

So in this case there's across-protection mutualism between these two species in which they help to avoid predation.

“因此在这种情况下这两个物种就形成了互惠共关系。”

This makes their offspring more vulnerable to predation than those of the tunnelers and rollers.

与挖道蜣螂和滚粪蜣螂相比，这种方式使它们后代更容易遭到猎食。