He had a scoliosis and therefore must have been looked after quite carefully by other female, and probably much smaller, members of his family group, to have got to where he did in life, age 12.
Il avait une scoliose et donc d'autres femelles avaient dû s'occuper de lui tout spécialement, ainsi probablement que les membres plus jeunes de sa famille, ce qui lui a permis de vivre jusqu'à l'âge de 12 ans.