Gorillas are large herbivorous primates that feed on leaves and stems of plants without clearing the entire site of vegetation. This allows for renewal and regrowth of plant species. Gorillas are mostly active during the day and make their nests either on the ground or in trees.
Gorillas are the largest primates on the planet, with males sometimes reaching nearly 400 pounds in weight. Females usually weigh about half that of males. Gorillas are capable of limited bipedal movement but mostly use their powerful front arms for transportation in a form of movement called knuckle walking. The silverback is the alpha male of a gorilla troop, which can contain as many as 30 individuals in the case of the mountain gorilla.