"A mother grizzly bear, linked by DNA testing to the fatal mauling of a hiker whose body was found partially eaten in Yellowstone National Park, was euthanized on Thursday, park officials said.

The 259-pound (117-kg) bear, which was trapped on Saturday, was heavily sedated before it was put down with a bolt, park spokeswoman Amy Bartlett said.

A necropsy determined that the grizzly sow was at least 15 years old but found her to be healthy and turned up nothing that could help explain the attack, she said. "

Laura Zuckerman reports for Reuters August 13, 2015. [2]