The answers we glean may in turn illuminate other mysteries, such as how their mental and physical capabilities compared to those of ancient humans.
In a new study published Wednesday in the journal Proceedings of the Royal Society B, researchers describe baby teeth samples from three Neanderthals.
They sought to find out how quickly these teeth grew in.
Past analysis suggests Neanderthal infants may have been able to start processing food besides their mother’s milk at as early as 4 months old.
Study co-author B. Holly Smith tells Inverse that faster growth can indicate higher rates of mortality in a species.