Fossils of Extinct Human Paranthropus boisei Discovered Near Lake Turkana

Researchers have unearthed 1.52-million-year-old fossils near Lake Turkana in northern Kenya, belonging to the extinct human relative Paranthropus boisei, revealing key insights into its anatomy and lifestyle.

Major Discovery

• The fossils — including most of a hand, three foot bones, most of the teeth, a partial forearm bone, and skull fragments — were found in the Koobi Fora region on the eastern side of Lake Turkana.
• Published in the journal Nature, the study marks the first time hand and foot bones have been unambiguously attributed to Paranthropus boisei.

Key Findings

• The structure of the hand and foot indicates that P. boisei was fully bipedal (walked upright) and had the ability to grasp and manipulate objects, possibly including stone tools.
• This provides new evidence that the species was more dexterous than previously believed.

About Paranthropus boisei

• Paranthropus boisei lived between one and two million years ago, sharing East Africa with early members of the genus Homo such as Homo habilis, Homo rudolfensis, and Homo erectus.
• It was a robustly built hominin, with:
  • Strong jaws and massive teeth adapted for chewing tough plant foods.
  • A sagittal crest atop the skull to anchor large jaw muscles.
  • Flaring cheekbones, giving it a dish-shaped face.

Evolutionary Context

• Paranthropus boisei was part of the hominin lineage — a group that includes modern humans and our extinct relatives after the split from the chimpanzee lineage.
• Though a cousin of Homo sapiens, it represents a distinct evolutionary branch that ultimately went extinct.

Lake Turkana

• Lake Turkana is fourth largest of the eastern African lakes.
• It lies mainly in northern Kenya, with its northern end stretching into Ethiopia.

Source: Nature