In June 2008, Petra Davis, 15, was 13 hours into a 24-hour trail-bike race in Far North Bicentennial Park in Anchorage, Alaska, when she was attacked by a grizzly bear. She survived the attack and crawled back to the trail, where she was found by her friend and coach Peter Bassinger, who called 911 and stopped other cyclists in the race as they passed. The bear punctured a lung, broke eight ribs, mauled her right leg and nicked Petra’s carotid artery. Despite these injuries, she recovered quickly and reports that she has almost no memory of the attack.

Listen to the 911 call here.