Starts at the top of the food chain and tumbles all the way down to the bottom Yellow stone national
park in anerica Wolves been intogused to the yellow ston natiol park in 1995 wolves give life to other anamails wolves been absent for 70 years Lots of deer beacuse there were no woves to kill them deers regused the vegatasion to all most nothing they just grazed it away ason as the wolves arived small in nubers they started to have the most remarkable afects first the killed som deer then they... they changed the behavoiur of the deer so the deer started avoiding the wolves and Sutan part of the park so the park could regaenarade the height of the trees grew 4 times as much as it does in a year birds and song birds started to move in! and lots of BEVERS wolves kill koties... then the rabbits and mice came the wolves changed the behavoir of the rivers they was less aroshion and more pools of all the anamils tp take a barth! The regarating forest stabalised the banks so that they colapse less often less siol arosen
HERE is the Video
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