A baby mountain gorilla is called an infant born weighing about 4 and half pounds, they are born vulnerable like human babies but develop more quickly and start walking at the age of six months. Infants breast feed up to the age of 2.5 years, and sleep in the same nests until the age of 4-6 years.
At around the age of about 4-6 years infants cling to their mothers backs, the mothers are responsible for grooming and infants of the group always play with themselves games like wrestling and somersaults. Baby mountain gorillas learn how to sit up right at 3 months.
Infant gorillas develop into Juveniles before they can become fully adults at around the age of 10 years, the females become sexually mature at around 8 years before the adult males. Male adults develop a grey patch of hair on their back become Silverbacks. Female mountain gorillas have a low birth rate and produce after every 4-6 years when the infants can do things on their own, they also have only 1-2 fertile days in a month and the females are the ones who follow females for mating.
Mountain gorilla groups are led by a dominating Silverback that is responsible for all the group activities like feeding, resting time, when to move and where to sleep. The Silverbacks also defend their groups just like females can defend the young ones even at the cost of lives.
A baby mountain gorilla is born with brownish hair covering its body except its face, palms, fingers, armpits and bottom of their feet. They start feeding lightly at about 3 years while still on breast milk. Female gorillas have a gestation period of about 8-9 months. When male gorilla are grown up to the age of about 20 years and above they usually challenge the dominating Silverback or live the group with some members to form their own group and this will involve a fight or alternatively move as lone Silverbacks.