"Alex Wypyszinski, a retired professor and amateur photographer, shot this amazing series of photos of a grizzly bear chasing down an injured bison when he stopped to take photos of geysers in Yellowstone National Park"
"Alex says, ..they had to have been going 25 miles an hour; it was astounding how fast they were going….to be truthful, I was thinking, ‘Maybe I’m having some kind of hallucination or something,’ because I had never seen anything like that.”
