wolf with scavengers sized

Liza Gross Media on Jan 22, 2013 by
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When wolves were reintroduced into Yellowstone in the 1990s, researchers had a rare chance to study the top predators' effects on the ecosystem after a long absence. They found that wolves help buffer the impact of deteriorating environmental conditions by providing food for scavengers. (Photo: Dan Hartman via PLOS Biology doi:10.1371/journal.pbio.0030132)

wolf in yellowstone with elk

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