A 17,000-year-old infant skeleton, find in Italy’s Grotta delle Mura cave, is providing new insights into human populations during the Ice Age. Discover in 1998, the remains were recently analyze for DNA, allowing scientists to reconstruct aspects of the infant’s appearance, ancestry, and health.
The DNA results suggest that the child likely had dark skin, blue eyes, and curly hair, a combination find in other ancient European hunter-gatherers.
The genetic profile connects the infant to an ancient population known as the Villabruna cluster, which live in Europe after the Last Glacial Maximum.
This group represents an early lineage of modern Europeans, suggesting that the boy’s community may have among the earliest ancestors of later European populations.
The DNA analysis also indicates that the infant may have had a genetic heart condition call as hypertrophic cardiomyopathy, which causes the heart muscle to thicken.
In infants, this condition can lead to congestive heart failure.
This potentially explains the boy’s early death at an age between 7 months and one and a half years.
Examination of the infant’s teeth provide clues about his brief life and his mother’s health.
Multiple growth lines on the teeth suggest that both mother and child may have faced physiological stress, likely from malnutrition or illness, during and shortly after pregnancy.
Further analysis show that the mother remain close to her community during pregnancy, likely indicating a localize lifestyle within the Puglia region.
The child’s remains was preserve in the cool environment of Grotta delle Mura.
This allow scientists to recover around 75% of his genome.
Preservation of ancient remains in warm climates is rare, making this genetic information particularly valuable for studying early human populations.
This research sheds light on the adaptation and migration of ancient human populations during a period of significant environmental change.
By genetic insights into the child’s traits and health, scientists can better understand the lives of early Europeans and their responses to Ice Age conditions.
