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。打开了一个生态位，让我们的哺乳祖先进化成为比锯齿更野心勃勃的，进化出长类，在长类中有了人类。

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.

压力很可能是人类为了填补新的生态位而展开竞争的结果，生态位是人类识别甜味食既可食用又有营养的能力所开启的。

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

它们有一个特殊的生态位，能很好地适应有限的境，它们确实是强大的竞争对手。

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

但另一方面，我们创造了新的生态位和新的栖息地。

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

适应的一方法是专门针对特定的生态位以求生存和繁殖。

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，一植可能依赖于一定数量的降雨，或者一可能只吃一，它们有一个专门的生态位。

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

觅食方式赋予了鸟自己的生态位，一独特的生活方式。

They say they want to refill these ecological niches.

他们表示希望填补生态位。

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，并适应了各不同的生态位，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.

哺乳填补了曾经被恐龙占据的生态位，并开始主宰始新世及以后的干燥草原和森林，但没有任何比人类更具威胁性。

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，亲本迅速经历变化，产生各新，以填补多个生态位。

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的牛和小马所占据，旨在填补那早已灭绝的岩石鱼和大梭鱼曾经占据的生态位。

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.

一场大规模的灭绝事件杀死了恐龙，也杀死了许多青蛙， 让各生态位突然开放。

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

对鳄类的牙齿和头骨的研究表明，每个属都适应了自己特有的生态位。

They spread into many ecological niches and replaced the gymnosperms.

它们扩散到许多生态位并 取代了裸子植。

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.

较大的体型让翼龙能够占领鸟类无法触及的生态位，比如长时间在开阔海洋上空飞行寻找食。

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的大型生态位，其他羊膜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，在所有竞争中，镰刀龙被推向了它们奇怪的特征组合，以开辟自己的生态位。

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

牠们之后形成不同的生态位，在其生态位中牠们不用为过多的竞争而担心。

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的科，其中五个科仍有现存类，它们占据了大量不同的生态位。