The man shot the bear with a bow and arrow, then attempted to recover the carcass too soon, authorities said.
"I don't blame the shark, I don't blame the bear, and I don't blame the rattlesnake," the victim said.
“The crunching noise, I guess, was the teeth scraping against the skull as it dug in,” the 19-year-old said.
Runner Patrick Cooper phoned his brother as the animal chased him.
"The force of each bite was like a sledge hammer with teeth," Todd Orr wrote later.
A search continued Thursday for the animal, believed to have been a grizzly.
Karen Williams said she survived by playing dead after a mother bear attacked her less than three miles from the finish line.
"A decision to euthanize an animal is not made lightly."
Darsh Patel and his friends, when confronted with the bear, did something that should be counter-intuitive; instead of vacating the area, they remained and made themselves noticeable by taking pictures. I wonder if cell phones allow us to withdraw into a false zone of anonymity.
Max, an 8-year-old dachshund, may not look like a fair match in a face-off with a black bear, but he proved otherwise -- twice
"I started to hear this growling," Thomas told the newspaper from an Anchorage hospital where she had been airlifted on Wednesday