熊猫 猩猩 犀牛 大猩猩之间有什么共同点呢
What do pandas, orangutans, rhinos, and gorillashave in common?
Aside from being animals that you probably only see
at the zoo, these animals are all endangered.
Scientists say an animal is ‘ endangered ’
when there aren’t many of them living in the wild anymore.
And any kind of animal can become endangered — birds,
昆虫 爬行动物 当然还有
insects, reptiles, and of course,
For example, meet the amur leopard.
This kind of leopard lives in a small area in Eastern Asia.
And there are only a /very few of them left in the wild.
Scientists think that, not counting the ones in zoos,
there are only about sixty amur leopards on the entire planet!
So they’re definitely endangered.
But how do animals become endangered?
There are a few good answers to that question.
But probably the common cause
of animals becoming endangered is when they lose too much of their habitat.
An animal’s habitat is the place where itlives…
…that’s right Squeaks!
An animal’s habitat is its home.
It’s where an animal can get all
of the things that it needs to stay alive.
Animals need things like… …
enough food to eat… clean water to drink…
空气 自由活动的空间 巢穴等
air to breathe… space to move around… and shelter. Plus,
mother animals need a safe place
to lay their eggs or to have and raise their babies. So,
habitats can be very different, for differentanimals.
One animal’s habitat might help keep itdry and warm.
For another, it might help an animal stay cool, wet,
and well-hidden from predators.
An animal’s habitat might be large,
or it might be very small.
But there’s one thing that all habitatshave in common.
They can only support so many animals.
If a habitat starts to get smaller,
that means that fewer animals can live in it.
This is what happened to the amur leopard.
Its habitat used to be a lot bigger.
But people started to cut down trees in the forest where the leopard lived,
to use for lumber and to make space to build houses.
So over time, the leopard’s habitat gotsmaller and smaller.
The leopards started to have a hard time finding enough food,
and enough safe spaces to raise their cubs.
所以 一段时间后 野生远东豹就越来越少了
So after a while, there were fewer and fewer amur leopards in the wild…
until there were
so few that scientists said that this kind of leopard was endangered.
Pollution can also change an animal’s habitat.
Pollution is anything that makes the earth unhealthy,
比如 垃圾 汽车和发电厂排出来的废气
like litter and trash, or the dirty smoke that comes out of cars and power plants.
对于某些鸟类 鱼类 爬行动物 两栖动物
pollution can also prevent the eggs of certain kinds of
birds, fish, reptiles, and amphibians from hatching.
Pollution changed the habitat of a bird calledthe brown pelican.
The brown pelican lives near the ocean, where it eats fish.
And about seventy years ago,
人们四处喷洒化学药剂 想要驱赶让人讨厌的昆虫 比如蚊子
people sprayed a chemical around to try and get rid of pesky insects like mosquitos.
But the chemical polluted the water in thebrown pelican’s habitat.
Some pollution ended up in the fish that the pelicans ate,
which made the birds sick, and
kept many of their eggs from hatching. Soon,
there were fewer pelicans.
For a while, the brown pelican was endangered.
But scientists and other people solved theproblem!
They told other people about the problem,
and soon everyone stopped using the chemical,
and the pelican’s habitat became clean again.
More baby pelicans began to hatch… and,
in most places, the brown pelican is no longer endangered!
This big brown bird is a great example
它向我们展示了 当我们发现濒危动物时 我们能做些什么
of what can happen we find out that an animal is endangered.
People can work together to try to clean
up an animal’s habitat if it’s polluted. Or,
if an animal’s habitat is getting too small,
like the amur leopard’s forest
people can try to plant more trees to make the habitat bigger again. Now,
you may not know it,
但是 此时此刻 你在帮助那些濒危动物
but you’re helping endangered animals right now!
One of the best things
that kids can do to help is to learn about animals that are endangered.
You can also help out animals that live
in your area by taking care of their habitats.
这意味着 回收后再丢掉垃圾 而不是将垃圾乱丢乱扔
That means doing things like recycling, and throwing garbage away instead of littering,
and working with other kids and grownups to clean up your neighborhood!
Everyone deserves a clean and healthy habitat.
Thanks for joining me on SciShow Kids!
Do you have a question about your favoriteanimal—or something else?
Ask a grownup to help you to leave a comment on this video, or to
send an email to Kids @ SciShow.com!
thanks I’ll see you next time here at the Fort.
熊猫 猩猩 犀牛 大猩猩之间有什么共同点呢