Amateur Photog captures grizzly chasing bison down highway in Yellowstone

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Field and Stream has published a slide show of photos by Alex Wypyszinski that show a grizzly bear chasing an injured bison in Yellowstone National Park. Mr. Wypyszinski is retired professor and amateur photographer, and works at a post office in the park during the summers. He explains what we're seeing in each of these shots.


(via BB Submitterator, thanks AdrenalineSleep)