Wolves literally changed Yellowstone's rivers
Reintroducing wolves to Yellowstone National Park dramatically reshaped its rivers by deterring elk, allowing vegetation to stabilize banks, and triggering a cascade of ecological benefits.
When wolves returned to Yellowstone National Park in 1995, they did more than just hunt elk; they reshaped the landscape. Before their reintroduction, elk overgrazed plants near rivers. The wolves' presence deterred elk from these river valleys, allowing trees and shrubs to flourish again.
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