Ecosystems
Educational videos
![](https://i.ytimg.com/vi/DnSTLQB__FY/maxresdefault.jpg)
The savanna
![](https://i.ytimg.com/vi/fUowRRqnGuw/maxresdefault.jpg)
The desert
![](https://i.ytimg.com/vi/zt9piJi0d7o/maxresdefault.jpg)
The Mediterranean Sea
![](https://i.ytimg.com/vi/X7QBLrAArqM/maxresdefault.jpg)
The North Pole
![](https://i.ytimg.com/vi/AK5O9hIg2KE/maxresdefault.jpg)
Discover Yellowstone
![](https://i.ytimg.com/vi/1H1zqCvGcus/maxresdefault.jpg)
Natural Habitats and Ecosystems