This puts the mountain gorilla high on the endangered list, along with hundreds more.

One relatively little guy was scaling the bars with the agility of a mountain gorilla.

Then a two-hundred-kilo Ugandan mountain gorilla crashed into him, leaving the thought behind like a speech bubble.

Virunga's mountain gorilla population sank to 300.

Many species are already critically endangered and close to extinction, including the Sumatran elephant, Amur leopard and mountain gorilla.