Bering land bridge
Imagine you're sitting on your bed and you have two toy cars on either side of you. Now, imagine those two toy cars are actually two big pieces of land called Asia and North America.
A very long time ago (around 20,000 years ago), the two big pieces of land were not separate like they are today. They were joined together by a strip of land that is now underwater called the Bering Land Bridge, kind of like a bridge that connects two places.
This land bridge appeared because there was a lot of ice in the world at that time, and a large amount of water was trapped in it. That made the ocean level much lower than it is today, so the connection between the two lands became exposed.
Now, when people or animals migrate, it means they move from one place to another. Many years ago, humans and animals also moved around looking for food or better living conditions. Some of them were living in Asia and others were living in North America, but they couldn't move from one place to another because of the big ocean in between.
When the Bering Land Bridge appeared, it meant that people and animals could move from Asia to North America, and vice versa, by walking over the bridge which were typically dry land or a frozen one. They could take all their things with them, like tools and clothes, and also bring new plants and animals to their new homes.
The Land Bridge was a really important way for things to move around, and it helped to mix plants, animals and people from different parts of the world.
A very long time ago (around 20,000 years ago), the two big pieces of land were not separate like they are today. They were joined together by a strip of land that is now underwater called the Bering Land Bridge, kind of like a bridge that connects two places.
This land bridge appeared because there was a lot of ice in the world at that time, and a large amount of water was trapped in it. That made the ocean level much lower than it is today, so the connection between the two lands became exposed.
Now, when people or animals migrate, it means they move from one place to another. Many years ago, humans and animals also moved around looking for food or better living conditions. Some of them were living in Asia and others were living in North America, but they couldn't move from one place to another because of the big ocean in between.
When the Bering Land Bridge appeared, it meant that people and animals could move from Asia to North America, and vice versa, by walking over the bridge which were typically dry land or a frozen one. They could take all their things with them, like tools and clothes, and also bring new plants and animals to their new homes.
The Land Bridge was a really important way for things to move around, and it helped to mix plants, animals and people from different parts of the world.
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