T-rex gets taken out. Well this opened up an ecological niche, that allowed our mammal ancestors to evolve to something more ambitious than a rodent and out comes the primates and among the primates we have people.

霸王龙被踢出局了。这打开了一个生态，让我们哺乳动物祖先进化成为比锯齿动物更野心勃勃动物，进化出灵长类动物，在这些灵长类动物中有了人类。

This pressure was probably a consequence of competition to fill the new ecological niches opened up by an ability to recognise sweet things as both edible and nutritious.

这种压力可是人类为了填补新生态而展开争结果，这种生态是人类识别甜味食物既可食用又有营养力所开启。

They have a specialized ecological niche, so well-suited to a narrow range of conditions, and they are really great competitors.

它们有一个特殊生态，好地适应有限境，它们确实是强争对手。

But the other side of that is that we've created new ecological niches and new kinds of habitats.

但另一方面，我们创造了新生态和新栖息地。

One way to adapt is to specialize for particular ecological niches in order to survive and reproduce.

适应一种方法是专门针对特定生态以求生存和繁殖。

For example, some plants may be relying on a certain amount of rainfall, or an animal may feed exclusively on one species, they have a specialized ecological niche.

例如，一些植物可依赖于一定数量降雨，或者一种动物可只吃一种物种，它们有一个专门生态。

This way of foraging gives this species of bird its own ecological niche, a unique way of life.

这种觅食方式赋予了这种鸟自己生态，一种独特生活方式。

They say they want to refill these ecological niches.

他们表示希望填补这些生态。

Birds diversified all over our planet and adapted for all different ecological niches, right?

鸟类在全球范围内多样化，并适应了各种不同生态，对吧？

Filling  ecological niches once occupied by dinosaurs, mammals came to dominate the dry grasslands and  forests of the Eocene and beyond, but no species may have been more threatening than humankind.

哺乳动物填补了曾经被恐龙占据生态，并开始主宰始新世及以后干燥草原和森林，但没有任何物种比人类更具威胁性。

And what adaptive radiation is is: an evolutionary process by which a parent species rapidly undergoes changes resulting in various new speciesin order to fill multiple ecological niches.

什么是适应性辐射：一个进化过程，亲本物种迅速经历变化，产生各种新物种，以填补多个生态。

It has been populated with red deer and also semi-feral cattle and ponies intended to fill ecological niches occupied by long extinct our rocks and tarpons.

它已经被红鹿以及半野生牛和小马所占据，这些动物旨在填补那些早已灭绝岩石鱼和梭鱼曾经占据生态。

There was a mass extinction event that killed off the dinosaurs, and many frog species too, that left all sorts of ecological niches suddenly open.

一场规模灭绝事件杀死了恐龙，也杀死了许多青蛙物种， 让各种生态突然开放。

Studies of the teeth and skulls of these crocs showed that each genus had adapted to its own ecological niche.

对这些鳄类牙齿和头骨研究表明，每个属都适应了自己特有生态。

They spread into many ecological niches and replaced the gymnosperms.

它们扩散到许多生态并 取代了裸子植物。

These larger sizes allowed pterosaurs to conquer ecological niches that weren't available to birds, like flying long distances over the open ocean in search of food.

这些较体型让翼龙够占领鸟类无法触及生态，比如长时间在开阔海洋上空飞行寻找食物。

During the Triassic as dinosaurs were evolving to fill large bodied ecological niches on land the other amniote groups were evolving to fill the sea and the air.

在三叠纪期间，随着恐龙进化以填充陆地上型生态，其他羊膜动物群也在进化以填充海洋和空气。

So, amid all of this competition, the therizinosaurs were pushed into their weird combination of features to carve out their own ecological niche.

因此，在所有这些争中，镰刀龙被推向了它们奇怪特征组合，以开辟自己生态。

The finches consequently sort out ecological niches. In these niches, they were safe from excessive competition.

牠们之后形成不同生态，在其生态中牠们不用为过多争而担心。

Over the last 50 to 60 million years, they diversified into eight different families, five of which still have living members, and they filled a huge variety of ecological niches.

在过去5000万到6000万年里，狐猴分化出了八个不同科，其中五个科仍有现存种类，它们占据了量不同生态。