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Denisovans: A tooth found in a cave in Laos sheds light on the mystery of this sister species to modern humans

They were able to determine that the person to whom this tooth belonged lived between 164,000 and 131,000 years ago in the hot tropics of northern Laos, as reported by CNN. The dating of fossil remains is crucial to understanding the sequence of events and species. Based on the analysis of the location and the dating of the fossils and sediments, the fossils were likely scattered across the landscape, washed into the cave during a flood.

Therefore, unlike Denisova Cave, these humid conditions in Laos did not allow ancient DNA to be preserved. However, archaeologists have found ancient proteins suggesting the fossil was a child, possibly a baby girl, human, probably between 3.5 and 8.5 years old.

This discovery supports the thesis of Southeast Asia as a zone of diversity for humans, the remains of 5 human species have already been found there: Homo erectus, Neanderthals, Homo floresiensis, Homo luzonensis and Homo sapiens.

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