刚刚我和吱吱一起了解了一种十分酷的动物！
Squeaks and I were just learning about a really cool animal!
猜猜看它是谁：
See if you can guess what it is:
它体型庞大…有四条腿…一根小尾巴…鼻子上还长了一只大角
It’s really big… it’s got four legs… a little tail… and a big horn on its nose…
没错！
That’s right!
它就是犀牛（英文中“犀牛”rhino作rhinoceros的简写）
It’s a rhinoceros, or a rhino for short!
它们是令人畏惧的动物！
They’re awesome animals!
但是目前它们存世不多
But there aren’t a lot of them left in the world.
你知道犀牛不止一个品种吗？
Did you know that there’s more than one type of rhinoceros?
这是真的！
It’s true!
犀牛分为五种 而且它们都分布在非洲或者亚洲
There are 5 types of rhino, and they all live in either Africa or Asia.
但是所有的犀牛都有一些共性首先 它们体型庞大！
But all rhinos have a few things in common: for starters, they’re huge!
分布在非洲的白犀牛是犀牛中最大的一种
The white rhino, which lives in Africa, is the biggest type of rhino.
一只白犀牛的重量在2000千克以上—比一辆汽车更重！
A white rhino can weigh more than 2,000 kilograms — that’s heavier than a car!
即便是最小的犀牛品种—苏门答腊犀牛—重量也接近1000千克
Even the smallest type of rhino, the Sumatran rhino, can weigh close to a thousand kilograms.
而且它们很长寿！
And they can live for a long time!
在野外 一只犀牛的寿命可在45到50岁之间！
In the wild, a rhino can live to be between 45 and 50 years old!
犀牛也是食草动物 这意味着它们只吃植物 如水果和草
Rhinoceroses are also herbivores, which means they only eat plants, like fruits and grass.
一些犀牛甚至将整棵树撞倒 这样它们就能吃到树叶
Some rhinos even knock down /whole trees/ so they can get to the leaves and twigs at
和顶端的细枝
the top.
犀牛还有什么其它共性呢？
What’s another thing all rhinos have in common?
提示一下：当你看着它们的时候很容易发现
Here’s a hint: it’s easy to see when you look at them.
没错 吱吱！
That’s right, Squeaks!
它们都有长在鼻子上的大角
They all have those big horns on their noses.
犀牛角都是由一种名叫角蛋白的材料成的
Rhinoceros horns are made of a material called keratin, which is the same stuff that your
这与构成你的头发和指甲的成分相同！
hair and fingernails are made of!
一些犀牛 如黑犀牛 有两个角 而另一些 如爪哇犀牛
Some rhinos, like the black rhino, have two horns, and some, like the Javan rhino, have
只有一个角
one.
犀牛用它们的角来保护宝宝不被食肉动物捕食
Rhinos use their horns to protect their babies from predators and to defend their territory,
还用来保卫它们的领地或居住地不被其它犀牛干扰
or the place where they live, from other rhinoceroses.
大多数种类的犀牛独居或和它们的宝宝（称作幼仔）一起居住
Most types of rhinos live alone or with their babies, called calves, and each rhino has
而且每一只犀牛都有自己的领地
its own territory.
而且它们划定边界和领地的方式很有趣：用它们的粪便！
And they mark the edges or their territory in a fun way: with their poop!
一只犀牛会选择一些地点 环绕在它们领地之外
A rhino will pick a few places around the outside of their territory where they will
它们总是选择在这些地点排便
always go to poop.
当它们排完便 犀牛会把粪便铺开 以便在空气中传播一种气味
When they’re done, the rhino will kick the poop around, spreading a smell in the air
这告诉其它犀牛远离此地
that tells other rhinos to stay away!
这里再有一种大多数犀牛的共性：几乎所有的犀牛已经濒临灭绝
There’s one more thing most rhinos have in common: almost all types of rhinos are
意思是现在它们存世不多
endangered, meaning that there aren’t a lot of them left.
举个例子 现在只有大约50只爪哇犀牛留存
There are only about 50 Javan rhinos left, for example, and they all live in one small
而且它们都居住在印尼的一小片区域内
part of Indonesia.
有朝一日 大多数种类的犀牛可能走向灭绝
Someday, most types of rhinos might go extinct — meaning that there won’t be any alive
—意思是世界上不再有活的犀牛存在
at all.
其它动物很少真的攻击犀牛 但它们依旧濒临灭绝
Other animals don’t really attack rhinoceroses, but they’re still in danger for two main
有两个主要原因
reasons.
一个原因是它们不再有很多地方去生存
One reason is that they don’t have as many places to live anymore, because people keep
因为人类不断破坏它们赖以生存的栖息地
destroying the habitats where they used to live.
另一个原因是一些人捕猎和杀死犀牛
Another problem is that some people hunt and kill rhinos because their horns are worth
因为它们的角很值钱
a lot of money.
但是很多人试图用不同的方式来帮助犀牛
But a lot of people are trying to help the rhinos in different ways, like by making it
像宣布猎杀犀牛非法和保护它们的栖息地
illegal to hunt them and protecting the places they live.
某种程度上 这确实在发挥作用
And in some places, it’s working!
黑犀牛和印度犀牛的数量又一次缓慢上升
Black and Indian rhino populations are slowly growing again.
但是对于其它种类犀牛而言 如爪哇犀牛 还有很多工作需要去做
But for other types of rhinos, like the Javan rhino, there’s still lots of work to do
如果我们不想让这些有趣的动物消失的话
if we want to keep these amazing animals around.
你能帮助它们的最好方法 就是尽可能多地了解它们
And the best way that you can help them is to learn as much as you can about them.
感谢您观看本期儿童科学秀节目
Thanks for joining us for this episode of SciShow Kids!
如果您有关于犀牛或其它任何动物的问题 找到一个大人在下方评论
If you have questions about rhinos or any other animal, grab a grownup and leave a comment
或者发送邮件到kids@scishow.com
below or send us an email at kids@scishow.com.
我们下次再会！
We’ll see you next time here at the fort!