As well as a piece of the lower jawbone
Over time, they could have shrunk on their new island home – a strange yet common phenomenon known as island dwarfism.
This relies on a variety of factors, from limited food sources to a lack of predators to defend themselves against.
Other researchers believe the fossils belonged to anatomically modern humans who suffered from some type of disorder that led to extreme disorder.
Microcephaly and Down syndrome have both been proposed.
However, the new discovery suggests otherwise – hobbits who wound up on the island seemed to defy traditional evolution and growth.