linguistic:voice_change, stylistic:tone, structural:expansion, information:extraction
Torso

MH1 and MH2 were estimated to have been roughly the same size, about 30–36 kg (66–79 lb). This is smaller than many contemporary hominins, but reasonable for an australopithecine. MH1 was about 130 cm (4 ft 3 in) tall, but he was a juvenile at about the same skeletal development of a 12-year-old human child or a 9-year-old chimpanzee. A. sediba, much like earlier and contemporary hominins, appears to have had an ape-like growth rate based on dental development rate, so MH1 may have reached about 85% of its adult size assuming a chimpanzeelike growth trajectory, or 80% assuming a humanlike trajectory. This would equate to roughly 150 or 156 cm (4 ft 11 in or 5 ft 1 in).