The Agashya family initially had 13 mountain gorilla members hence deriving the name 13 group however the mountain gorilla numbers increased and today the family has 25 individual members including a dominant silverback, 12 females, 3 youth gorillas, and 7 young ones. The dominant silverback Agashya won the leadership crown after overpowering the then group leader Nyakairima in a deadly fight.
After winning, Agashya decided to move the gorilla family uphill for protection against any intruders. Agashya is very ambitious and with his efforts, he managed to increase the mountain gorilla numbers in his family from 12 to 25. Agashya is very protective of his gorilla family and once he senses any danger and intrusion, he moves with the whole mountain gorilla family uphill.