The bones of a 2- or 3-year-old Homo naledi youngster were found in the Rising Star cave in South Africa, close to where the adult remains of the species were first found in 2015. According to new analysis published in the journal Plos One, the skeleton of this youngster offers important clues about how our ancestors developed and received treatment.
The child's bones reveal indications of physical development and care that are comparable to those seen in contemporary human children, according to the researchers. The kid may have received extra care and attention in order to reach adulthood, which would imply that Homo naledi had complex social behaviors.
The finding adds to the accumulating body of evidence that complex and caring social networks coexisted with traits like tiny brains and a lack of stone tool use in early human species like Homo naledi.
A group of researchers from the University of the Witwatersrand, the University of Pretoria, and other organizations worked together to analyze the juvenile Homo naledi skeleton. The youngster was given the moniker "Neo" after the Sesotho word for "gift."
The researchers created a reconstruction of the kid's probable physical look and development by analyzing Neo's bones. Similar to contemporary human children, the bones point to a juvenile with a short body and lengthy limbs. The child's permanent teeth were just starting to show when it died, although the researchers also saw remnants of a few milk teeth.
The researchers also conducted a statistical comparison of the juvenile's bone proportions to those of other fossil hominins and contemporary humans. They discovered that the juvenile shared a number of similarities with people, such as a comparable hip structure that suggests vertical mobility. Despite having an ape-like upper arm to leg proportion, it still had an extended adolescence.
The team used a CT scanner to inspect the juvenile's inner ear to learn more about its growth. They discovered that Neo had finished around half of its ear canal growth at the time of its death. Their growth rate was probably roughly comparable to that of contemporary human children as a result.
The researchers assert that the study of the juvenile Homo naledi bones offers critical information about the life history of this early hominin species. The data suggest that Homo naledi had advanced social habits and took good care of its offspring.