For instance, all of the plants and animals on the savanna make up the savanna community.

例如，草原系统的所有动植物构成草原的一群落。

Until now, thanks to some wild savanna sparrows.

多亏某些野生稀树草鹀，现在我们能用野鸟做实验。

The open savanna beneath the trees makes it easy to move around and feed.

树下开阔的草原使得它可以轻松走动和觅食。

Now researchers have teased out some of these factors in an East African savanna.

如今，科学家已在东非草原筛选出真正的影响因素。

As the climate heated up, the forests receded, and humans ventured out into the savanna.

随着气候变暖，森林退化，人类铤走险，进入草原。

But the thorny acacia are more numerous on the open savanna, where they need to defend themselves.

有刺的金合欢树更多地长在开阔的草原中，在那，它们需要保护自己。

Scientists can easily count the number of savanna elephants from an airplane because there are very few trees.

科学家们可以很容易地借助飞机数出稀树草原的大象的数量，因为那里的树木非常少。

14 thousand years ago, large parts of North America's landscape and wildlife were just like the savanna of modern Africa.

14000年前，北美大陆的大部分地区和野生生物就想是如今的非洲大草原。

Little seeds of romance blossoming in the savanna.

爱情的种子在草原上发芽。

It sort of resembled a savanna but without grass.

这就像是一有草的大草原。

Partners look at me like I'm a gazelle on the savanna.

合伙人们看我就像看草原上的小羚羊。

So, they have to be careful when cruising the African savanna.

因此，它们在非洲大草原巡游时必须小心。

This suggests that ice age Florida was drier than it is today— a mix of woodlands and savanna rather than swamps.

这能够告诉我们，冰河时代的佛罗里达比现在更加干燥，到处都是树林和草原不是沼泽。

In the east African savanna, pools of water form during the rainy season only to dry up a few months later.

在非洲稀树草原东部，雨季形成的水池仅在几月后就会干涸。

While endemic to most parts of Africa, they prefer the open woodland savannas, or the grasslands.

尽管短尾鹰在大部分的非洲是一种常见的鸟类，但是它们更普遍存在广阔的稀树草原，或者是草原。

America during the last Ice Age, it was probably a savanna, with its own set of native earthworms.

当地可能就是莽原，还有原生种的蚯蚓。

The biggest challenge for the film's visual effects team was creating a photorealistic version of the African savanna while also remaining faithful to the source material.

对于影片视觉效果团队来说，最大的挑战是在忠实于原作素材的情况下，创造出一逼真的非洲版草原。

It means we know every kind of sound that has ever been uttered by a savanna sparrow in this population over the course of many decades.

也就是说，我们知道这稀树草鹀种群在数十年间发出的每种声音。”

As it warns that, if deforstratation continues, the Amazon rainforest could reach a critical tipping point where most of it transforms into a dry savanna.

正如它警告的那样 如果森林砍伐继续下去 亚马逊雨林可能会达到一关键的临界点 届时大部分雨林将变成干燥的稀树草原。

Further to the north, the popular Woodland Park Zoo is home to more than a thousand animals and birds in habitats ranging from the African savanna to tropical forests.

再往北前进，极受欢迎的林地公园动物园里有超过一千只动物和鸟类，园内栖息环境从非洲大草原到雨林都有。