A new analysis of a Neanderthal infant skeleton has provided evidence that these ancient humans started life larger and may have developed more rapidly than modern human babies. The findings, published in the journal Science Advances, are based on the exceptionally well-preserved skeleton of a Neanderthal child, nicknamed 'La Ferrassie 8', discovered in France.
The research indicates that the infant's brain size at birth was similar to that of a modern human newborn, but its overall body size was likely larger. This suggests a different pattern of growth and development. The study's authors propose that faster postnatal growth rates could have been a biological adaptation for Neanderthals, potentially linked to their high energy needs and the challenging environments they inhabited.
This discovery challenges previous assumptions about Neanderthal life history and development. Understanding these growth patterns provides crucial insights into the biology, energetics, and social structures of our closest extinct relatives, highlighting key differences from our own species, Homo sapiens.