The incident occurred in 2012.
A photograph depicts young gorillas dismantling a poacher's trap.
No gorillas caught in snares this year! - Dian Fossey
Almost human: photographing critically endangered mountain
10 positive things to put a smile on your face - Rest Less
Baby gorillas have figured out how to dismantle hunting snares
In Uganda, safeguarding chimpanzees against the scourge of snaring
The amazing emotional intelligence of our primate cousins
Plan Uganda Gorilla Safari & Chimpanzee Trekking Trip Guide
Gorillas Learn to Dismantle Poacher's Traps
Researchers Have Discovered Young Gorillas Destroying Traps In
Exploring the Mind of the Mountain Gorilla
Astonishing Picture Shows Two Young Gorillas Dismantling The Traps