Between 2000 and 2003, biologist Amie Huguenard spent three summers in Alaska with her boyfriend Timothy Treadwell, studying and filming grizzly bears.
Treadwell, who was better known as the "Grizzly Man," had met Huguenard during a book tour in 1996 and the pair had instantly bonded over their love of animals.
But then, in October 2003, the couple was brutally mauled and eaten by a half-ton bear that attacked them at their camp.