The scientists labeled the find "truly astonishing ... which researchers think could be to mimic the "natural sutures that join sections of the human skull." Experts are still speculating ...

One of the cranial sutures — the wiggly lines on a skull where the individual bones fuse during life — was already closed, which does not normally happen until a person is older than 65.

[3] Figure 1 illustrates the boney anatomy of the normal skull sutures and fontanelles. The newborn infant's skull is incompletely ossified and the cranial sutures are normally open at birth ...

Craniosynostosis is a condition where one or more of the sutures in a baby's skull close prematurely, leading to abnormal head shape and potentially affecting brain development. This condition can ...