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Bison keep the vegetation in yellow stone ecosystem down

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they make nesting grounds for birds.

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Managing and manipulating plant life.

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their hooves shape the ground and make holes

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their hooves shape the ground and make holes

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Nourish ecosystem.

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they make holes in the ground and then  plants in the find their way  to the holes to  grow.

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they make holes in the ground and then  plants in the find their way  to the holes to  grow.

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their poop provides fertilizer for the grass.

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Augmenting soil health.

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alterate soil in the environment with there hooves

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grazing patterns help the population of insects and influences natural fires

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their grazing patterns created successful vegetation

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their grazing patterns created successful vegetation

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Birds feed on insects disturbed by bisons steps.

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They reproduce and increase the population

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They reproduce and increase the population

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They allow birds to feed off of the birds that burrow into their fur

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Birds perch and feed on insects that are on the bison.

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Bison rub on rocks and trees and kill insect pests.

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their dead body's make indents into the ground

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their dead body's make indents into the ground

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Bison grazing helps to control the growth of vegetation

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it equals to both things fighting over the food

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it equals to both things fighting over the food

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when they make wallows the wallows fill with water and make water sources

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when they make wallows the wallows fill with water and make water sources

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It creates a more complex food chain

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we can learn that if you take away one species that the other will thrive and over populate until it is brought back

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less food to go around especially when they both eat the same food 

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less food to go around especially when they both eat the same food 

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it helps keep population down with the ones that are over populated

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it helps keep population down with the ones that are over populated

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We can learn a good way to maintain the ecosystem. It helps the population balance out and returns the ecosystem to normal. It could help grass growth.

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life is rough. two predators fight for same food source

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They wallow in the mud and create breeding grounds for birds