In class we have been learning about sustanablitey
https://www.youtube.com/watch?
Wolves Howling
Yellow stone natianiol park united states of america
Wolves beeing itrgushed in 1995
wolves give life to other spesies of anamils
LOts of deer beacuse there were no wolves to kill the deer so there were are alot of deer
The regused the vegatasion
the wolves changed the behavour of the deers an they started to avoid the wolves
The places were the deer havent been stared to regerate
the hight of the trees grew 5 times more than it does
The birds stared moving in/Song
Bevers got intogused and they started buiding dames
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