Researchers claim that they have uncovered the jawbone of very first humans.
The fossil jawbone, which is around 2.8 million years old, was uncovered form the Ledi Geraru research area. It is approximately 400,000 years old than previously thought. It fills a big evolutionary gap of first humans and their ape like ancestors.
Chalchew Seyoum, an Ethiopian student, was the first one who came across the bone.
The oldest known fossil was around 2.3 million years old. In comparison, the newly discovered specimens is more than 2.5 million years
Dr. Brian Villmoare, professor at the University of Nevada, remarked that Homo lineage fossils are rare to find. Hence, it is pretty exciting for researchers to get a close look of the earliest phase of evolution.
The discovery reveals a strong connection between an iconic 3.2 million years old human like primate. The old hominine, dubbed as “Lucy”, was first unearthed in 1974. However, researchers are uncertain whether Lucy’s kind was evolved into the first primitive humans or not.
However, scientists found numerous other fossils along with the jawbone. These remnants are linked to animals with more arid habitats.
The latest discovery shows that climate change speeds up the transformation of tree dweller to upright walkers.
The findings are printed in the latest edition of Journal Science