Ape Origins Rewritten? Fossil Discovery Suggests North Africa as Potential Cradle of Humankind

For decades, East Africa has been considered the primary location where the first apes evolved. But a recent discovery in Egypt is challenging that long-held belief. Paleontologists have unearthed fossils of a previously unknown ape species, Masripithecus moghraensis, dating back approximately 17 to 18 million years, suggesting that North Africa – or even the broader Afro-Arabian region – may have played a pivotal role in the early evolution of apes, including those leading to modern humans.

Unearthing Masripithecus: A New Piece of the Puzzle

The fossils, discovered at the Wadi Moghra archaeological site in northern Egypt in 2023 and 2024, consist of teeth and jawbone fragments from two individuals. The findings, published March 26 in the journal Science (Masripithecus: A new Miocene ape from Egypt sheds light on the origins…), are prompting scientists to reconsider the geographic origins of the ape lineage. The team, led by Shorouq Al-Ashqar at Mansoura University in Egypt, determined the fossils belonged to a new genus and species of ape.

“The entire story [of early ape evolution] was told by only a small corner of the continent,” Al-Ashqar explained, highlighting the historical focus on East African fossil sites. This discovery expands the known ancestral range of apes, encompassing gibbons, chimpanzees, gorillas, and humans.

What Sets Masripithecus Apart?

Apes are distinguished from monkeys by the absence of a tail. But the differences extend to dental characteristics. According to Al-Ashqar, ape teeth are generally flatter than those of monkeys, and the second and third molars tend to be similar in size. The Masripithecus fossils exhibit these ape-like dental features. Based on the thickness of its tooth enamel, researchers believe Masripithecus likely had a varied diet, consuming fruits, nuts, and seeds abundant in the subtropical and tropical forests of ancient Egypt.

Reconstructing the Ape Family Tree

To understand where Masripithecus fits into the broader ape evolutionary picture, the research team combined genetic data from modern apes with physical characteristics of both living and extinct species. Their analysis suggests that Masripithecus was closely related to the last common ancestor of modern apes. This close relationship is what fuels the hypothesis that apes may have initially evolved in North Africa before dispersing to other parts of the world.

Susanne Cote, a paleontologist at the University of Calgary who was not involved in the study, emphasized the significance of the find. “Anytime anybody has a new ape fossil it’s exciting,” she said. She too noted that despite the rich fossil record at Wadi Moghra, primate fossils have been surprisingly rare, making this discovery all the more remarkable. (Fossils discovered in Egypt may be the closest ancestor of all apes)

A Shifting View of Ape Migration

The discovery of Masripithecus has prompted a re-evaluation of how early apes dispersed across the globe. The research team used statistical analysis to model the potential movement of early apes out of Africa. Their findings suggest a scenario where apes may have originated in North Africa or the Middle East, migrated into Eurasia, and then subsequently moved back into Africa. This challenges the traditional view of a solely African origin and outward migration.

However, Cote cautions against drawing definitive conclusions. She suspects that apes were likely more widespread across Africa than the fossil record currently indicates, pointing out that many regions outside of East Africa remain under-explored. “That doesn’t imply that it’s the only place they were living,” she stated.

What Remains Unknown and What’s Next

Although the discovery of Masripithecus is a significant step forward, many questions remain. Currently, the fossil evidence is limited to jaw fragments and teeth. Researchers have no information about the ape’s body size, locomotion, or other aspects of its anatomy.

James Rossie, a paleontologist at Stony Brook University, highlighted the importance of continued paleontological work in the region. “This [discovery] verifies that our view of ape evolution in Afro-Arabia still has huge blind spots,” he said. He suggests that further exploration of countries like Morocco, Tunisia, and Libya could reveal additional early ape fossils. (Early apes may not have evolved in East Africa)

Al-Ashqar and her team plan to continue their excavations at Wadi Moghra and other promising sites in Egypt, hoping to uncover more complete fossil remains of Masripithecus and other early primates. The ongoing research will undoubtedly refine our understanding of the complex and fascinating story of ape evolution. Future work will focus on expanding the search for fossils across North Africa, potentially rewriting textbooks on primate origins.