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About
Yellowstone Foodweb for Bison bison (American bison)
Yellowstone
Ursus arctos
(
Grizzly Bear
)
Bison bison
(
American bison
)
Poa secunda
(
Sandberg bluegrass
)
Ecosystem provided by National Geographic Magazine - May 2016 - Yellowstone - The Carnivore Comeback