Maui News

UH: Potential Direct Ancestor of Modern Humans Identified

November 1, 2021, 7:12 AM HST
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PC: Homo bodoensis actual fossil (Photo credit: Jeffrey H. Schwartz) LEFT. Artist rendering of Homo bodoensis (Credit: Ettore Mazza) RIGHT

“A direct ancestor to modern humans has been identified, providing clarity to an important chapter in human evolution,” according to an announcement by an international team of researchers, including a University of Hawaiʻi at Mānoa professor, that was published on October 28 in Evolutionary Anthropology.

According to a UH press release, Homo bodoensis lived in Africa during the Middle Pleistocene (774,000-129,000 years ago). The new name is based on a reassessment of existing fossils from Africa and Eurasia from this time period, according to co- and corresponding author Professor and Department Chair Christopher Bae from UH Mānoa’s Department of Anthropology in the College of Social Sciences.

“The Middle Pleistocene is an important time period because it saw the rise of our species (Homo sapiens) in Africa and the Neanderthals (Homo neanderthalensis) in Europe. However, the time period is poorly understood, often being called the ‘muddle in the middle,'” according to UH.

“The new species, Homo bodoensis, should help to simplify the picture of human evolution during the Middle Pleistocene because it is more clearly defined, where the African fossils can easily fit,” Bae said.

According to UH, fossils discovered from the Middle Pleistocene have historically been assigned to either Homo heidelbergensis or Homo rhodesiensis; however, experts said both species carry multiple and often contradictory definitions.

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“The traditionally problematical taxa (Homo heidelbergensis and Homo rhodesiensis) have not been well defined, where everything ends up getting dumped in there that is not clearly Homo erectusHomo neanderthalensis or Homo sapiens,” Bae said. “Further, given the political baggage attached to Cecil Rhodes (former prime minister of Cape Colony) and colonial southern Africa, namely Rhodesia, it is high time to have Homo rhodesiensis removed. There is a strong push to decolonize anthropology and paleoanthropology is no different.”

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The name “bodoensis” comes from a skull found in Ethiopia. Bae said under the new classification, Homo bodoensis will describe most Middle Pleistocene humans from Africa and some from eastern Europe, while many from western Europe will eventually be reclassified as early Neanderthals. Given that modern humans are currently considered to have arisen in Africa, Bae said it seems logical that Homo bodoensis could be its direct ancestor, according to the UH release.

Bae’s co-authors are Mirjana Roksandic from the University of Winnipeg (Canada), Predrag Radović from the University of Belgrade (Serbia) and Xiu-Jie Wu from the Institute of Vertebrate Paleontology and Paleoanthropology (China).

*Courtesy University of Hawaiʻi at Mānoa

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