Archaeologists in Georgia have discovered a 1.8-million-year-old jaw belonging to an early human species, which they say will shed light on some of the earliest prehistoric human settlements on the Eurasian continent.
The Georgian site in Orozmani, smaller than two parking spots but rich in history, has unearthed the oldest remains of early humans excavated so far outside Africa and provides clues to patterns of Homo erectus, a hunter-gatherer species that scientists believe began migrating about two million years ago.
"The study of early human and animal fossil remains from Orozman will allow us to determine the lifestyle of the first Eurasian colonizers," said Giorgi Bidzinashvili, a professor of stone age archaeology at Ilia State University in Tbilisi.
"We think that Orozman can give us great information about humanity."
The lower jaw was found about 100 km (62 miles) southwest of the Georgian capital of Tbilisi, where archaeologists in 2022 excavated a tooth from early humans of the same era. In the nearby village of Dmanis, 1.8-million-year-old human skulls have previously been found.
In this latest discovery, archaeologists also found fossils from animals, including a tiger, elephant, wolf, deer, and giraffe, as well as a large amount of stone tools.
A study of jaws and animal fossils could provide crucial answers about how early humans evolved after they left Africa, including what they ate and what the climate was like, scientists say.
At the Orozmani excavation site, archaeologists discover new remains of Homo erectus every year.
"On my second day (in the excavation) I found a small ankle bone," said Miles Alexandre, a recent anthropology graduate from the University of Rhode Island in the US.
"If you go down five centimeters below... there's a good chance you'll find something."