There are approximately 400 to 1000 mountain gorillas left. Vaughn Publishers, an imprint of steck- Vaughn Company. When there is an intruder they show their canine teeth. They sort- of show their strenghth. For males it can be 10-20 offspring within a 50 year life span.
Gorillas like to sunbathe.
They will lye out for a coule of hours or more. Gorillas can snore, hiccup, burp, cough, sneeze, scratch, and pick their noses.