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I love living in a place where I get to enjoy rainy weather, because I love the smell of rain!
我喜欢住在可以享受雨天的地方，因为我喜欢雨的味道。
And Squeaks likes jumping in puddles!
Squeaks喜欢踩水洼。
But there are some places where there’s almost never any rain.
但一些地方几乎不下雨。
They’re called deserts, and they’re the driest places on Earth!
它们被称为沙漠，是地球上最干旱的的地方。
In deserts, there’s so little rain that sometimes you have to wait a whole year just for one rain storm!
沙漠几乎没雨，有时等整整一年才能有场暴雨。
So things that live in the desert, like plants and animals and even people,
所以沙漠中的生物，不管是植物、动物还是人，
need special ways to survive when there're so little water.
都需要特殊的方法才能在几乎没水的时候生存下来。
They also need special ways to deal with the temperature in the deserts.
它们也需要特别的方法来应对沙漠中的气温。
Because deserts aren’t just very dry. They can also be very hot or very cold.
因为沙漠不仅仅是非常干旱，也会极热或极冷。
Hot deserts are the kinds of deserts you might have heard about before.
你可能以前听说过炎热的沙漠。
They’re incredibly hot—just like as hot as the middle of the summer, all year!
它们出奇的热，就像全年都是仲夏的热度。
Though they can also get pretty chilly at night.
尽管晚上它们也会变得相当寒冷。
Hot deserts don’t have a lot of big leafy plants that can help provide shade during the day,
多叶植物白天能遮凉，晚上能像毛毯一样保温，
or anything to hold in heat at night like a blanket.
但炎热的沙漠中却难见它们的踪迹。
But not all deserts are hot. There are actually cold deserts, too!
但不是所有的沙漠都是热的，也有非常寒冷的沙漠。
During the summer, cold deserts aren’t too cold, but when it gets to winter, they’re freezing!
在夏天，寒冷沙漠并不太冷，但一到冬天，它们会冰冻。
When you think of the cold, you might think of snow.
当你想到冷时，你可能会想到雪。
But it hardly ever snows in cold deserts, even though it so cold.
但在沙漠里，就算很冷，也基本不下雪。
There might only be a tiny bit of snow or rain all year.
这里全年可能会下丁点儿的雨或雪。
Whether their desert is hot or cold,
不管沙漠是冷是热，
all the plants and animals that live in deserts have to be really well prepared to live in such an extreme place.
所有沙漠中生活的动植物都要在这种极端的地方做好生存准备。
One of the main things that’s hard about life in the desert is that there’s so little water.
在沙漠生存艰难的一个主要原因是这里几乎没水。
So, Squeaks, what do you think plants or animals can do to make sure they have enough water?
所以，Squeaks，你认为动植物怎么做才能保证它们有足够的水？
That’s right! Some of them have special ways to hold on to whatever water they can find.
说得对！一些动植物确实有特殊的方法来储存它们找到的任何水。
Like a cactus! Cactuses are plants that live in deserts,
拿仙人掌举例！仙人掌是沙漠中的植物，
and they have thick stems where they can store water for a long time.
它们有粗粗的茎来长时间储水，
It’s almost like they have a water bottle built into their bodies!
就像它们体内有一个水瓶一样。
So even though it doesn’t rain very much,
所以尽管沙漠下雨不多，
whenever it does rain, a cactus will soak up lots of water and save it up,
但不论何时下雨，仙人掌都会吸收大量的水，并把它储存起来，
so it has water until the next time it rains.
维持到下次降雨。
But that’s not the only way to get water when it hardly ever rains.
但这并不是在几乎没雨的情况下获取水的唯一方法。
Do you know what kind of animal this is, Squeaks? You’re almost right!
Squeaks，你知道这是什么动物吗？说得差不多。
It does look a lot like a bunny rabbit, but this is actually a different kind of animal, called a jackrabbit.
它确实很像小兔子，但却是一种完全不同的动物，它叫长耳大野兔。
Jackrabbits live in hot deserts in the United States and Mexico,
长耳大野兔生活在美国和墨西哥的炎热沙漠中。
and they mainly get their water from the plants they eat.
它们主要是从所吃的植物中获取水分。
They also do something kind of funny to make sure they get as much water as they can: they eat their poop!
它们也会做一些有趣的事来确保获得尽量多的水，它们会吃掉自己的便便。
This way they can get any water that might have been left in it.
这样它们就可以吸收里面残留的水分。
The other thing that’s really hard about living in a hot desert is that it’s so...hot!
在炎热沙漠中生活艰难的另一个原因是它太热了。
That’s why jackrabbits have those huge ears.
这就是长耳大野兔耳朵巨大的原因。
They’re big so that the jackrabbit can cool off really quickly.
大耳朵能使长耳大野兔迅速降温。
So jackrabbits don’t do much during the day, when it’s the hottest. They sleep instead!
所以长耳大野兔在白天，尤其是最热的时候不会做什么，而是睡觉。
They’re mainly active early in the morning and in the evening,
它们主要是在早晨和傍晚活动。
when the sun isn’t as high in the sky so it’s a little cooler.
那时太阳不是很高，天气有点儿凉。
They’re also active at night.
它们也在晚上活跃。
But what about animals that can choose to live wherever they want, like humans?
但是那些可以像人类一样随心所欲地选择居住地的动物呢？
Well, people have lived in deserts for an incredibly long time,
人们在沙漠生活了很长一段时间，
and we’ve come up with all kinds of ways to survive there.
我们想到了各种生存办法。
But some humans live in the desert using some of the same ways as the other animals that live there.
但有时人类与居住在这里的动物使用相同的沙漠生存之法。
People who live in deserts can choose to wear special loose clothes that allow the breeze to cool them off.
居住在沙漠中的人类可以选择穿特别宽松的衣服，这样微风就能给他们降温。
These clothes work a lot like a jackrabbit’s ears, letting people catch a breeze and cool off quickly!
这些衣服的功能就像长耳大野兔的耳朵，让人捕捉到风来迅速降温。
People also have to avoid the intense heat of the hot desert sun.
人们还必须避免炎热沙漠中太阳的酷热。
You could try bringing an air conditioner with you wherever you go,
无论你走到哪里，你都可以带上空调，
but some people use another way to stay cool.
但一些人使用其他的方法来保持凉爽。
They only go out when the sun is low! Just like many desert animals.
就像许多沙漠动物一样，他们只在太阳不高时外出。
Some people will wake up early when the sun is just rising, and get things done in the morning.
一些人在太阳刚刚升起时就醒来，在早上把事做完。
Then during the hottest part of the day, they’ll rest in the shade.
到了一天最热的时候，他们就在阴凉处休息。
And then when the sun is setting, the air gets cooler,
当太阳降落，天气变凉时，
and everyone can go outside again without getting too hot.
他们就不用冒着炎热再次外出了。
Squeaks, do you remember which other animal also does this?
Squeaks，你记得什么动物也是这样做的？
That’s right! Jackrabbits are active in the mornings and evenings, too!
答对了，长耳大野兔也是在早上和晚上活动。
And there are lots of other desert animals that live this way too, like coyotes, birds, and even porcupines!
许多其他的沙漠动物也是这样生活的，如丛林狼、鸟类和豪猪。
Animals that are most active at sunrise and sunset are called crepuscular.
在太阳升起和落下时最活跃的动物被称为黄昏行性的动物。
And it turns out that being crepuscular is a pretty good lifestyle for people in the desert, too!
实践证明，在黎明(或黄昏)时活动对于沙漠中的人类来说是一种相当好的生活方式。
There are so many interesting way to live, even in a place as dry as a desert.
世界上有许多有趣的生活方式，即使是在干旱如沙漠这样的地方。
No matter how they choose to do it,
不管人类和其他的动植物怎么选择，
the people, other animals, and plants that live in deserts have to be pretty tough.
在沙漠中生活都是非常艰苦的。
Thanks for joining us for this SciShow Kids!
感谢收看儿童科学秀。
If you want to keep learning and having fun with me and Squeaks, be sure to click the red Subscribe button.
如果你想继续学习，与Squeaks和我共度美好时光，一定要点击红色订阅按钮。
Thanks and we’ll see you next time, here at the Fort!
感谢收看，下次再见，我们在沃思堡等你！
