For a youngster, every day is a struggle to stay alive.

对于幼兽来说，每天都是场斗争。

Koala joeys will stay in their mothers' pouches for about six months.

考拉幼兽大约会在妈妈口袋里呆上六个月。

Newborns, called joeys, stay in the safe, warm place for months, while they continue to develop.

被称为" 幼兽" 新考拉会在安全温暖育儿袋里待上几个月，继续发育。

Half the colony are babies. Though barely a week old, they are already almost as big as their mums.

族群半都是幼兽。虽然只有个星期大，它们已经差不多跟它们妈妈样大。

– the social knowledge that a young northern rhino – or calf – can only learn from other northern rhinos.

—头年幼犀牛或犀牛幼兽只能从其他北部犀牛那里学到社会知识。

Being a hatchling, you don't have horns, you don't have plates, you don't have any kind of armor on the body.

刚孵化幼兽，没有角和鳞片，身体上没有任何甲壳。

Hunting together makes it easier to ambush and capture prey, and keeping their young nearby offers them protection from rivals.

群体狩猎使得伏击和捕获猎物更加容易，而且能把幼兽带在身边，不易受到竞争者伤害。

Her quick reactions allowed her to reach out her arms and catch the baby beast.

反应她伸出双臂， 把抓住了这只幼兽。

For a hatchling, the situation is even more dire. They lack even the most basic early-warning system that danger is present.

对于幼兽而言，情况就更糟了。它们连最基本预警系统都没有。

A calf is the name for the young of several large mammals including cows, elephants and whales, as well as rhinos.

幼兽是几种大型哺乳动物幼仔名字，包括奶牛、大象、鲸鱼以及犀牛。

The cubs will share the remains of the kill.

【kill】幼兽将分享猎物被吃剩部分。

Jack and Annie crouched in the tall grass. There was a big lion, three lionesses, and a bunch of cubs.

杰克和安妮蹲在高草中。有只大狮子、三只母狮和群幼兽。

A biosciences and genetics company has raised $15 million to do this, and it says it hopes to have calves walking around in four to six years.

家研究物科学和遗传学公司已经就该项目集资1500万美元，该公司表示，预计在四到六年内，人们就能看到这种杂交动物幼兽到处行走了。

And since Najin and Fatu, the last remaining northern rhinos on Earth, are getting old, the race is on to breed a young rhino calf before they die.

由于地球上仅北部白犀牛" 娜津" 和" 法图" 正在变老，在它们死去之前繁殖犀牛幼兽就变得迫在眉睫。