A 476,000-year-old wooden structure was found at Kalambo Falls, Zambia. This discovery has significantly changed our view of early hominin intelligence. Researchers at Aberystwyth University and the University of Liverpool discovered these logs, fitted together, which are the oldest known examples of wood used in building. Remarkably, this structure existed 200,000 years before Homo sapiens appeared. The waterlogged soil preserved the artifacts, demonstrating advanced carpentry skills such as using stone tools to join wooden pieces. These findings indicate that Pleistocene ancestors were not just wandering foragers; They had the mental capacity to change their environment for permanent living space. This revelation changes the way we think about our ancestors’ technological progress and history.

Study shows early humans had abstract thinking and design abilities 476,000 years ago

A study in the journal Nature Turns out the wooden structure is made of two logs that fit together with a specially designed notch. This suggests that early hominins, such as Homo heidelbergensis, had the cognitive ability to form a mental model and an abstract design. This challenges the long-held belief that wood was only used to make simple tools such as digging sticks in the Middle Pleistocene.

How did scientists determine the age of the world’s oldest wood?

Scientists wanted to find out how old the find was, so they used a technique called luminescence dating on the sand around it, reported at Aberystwyth University. This way, they could see when the minerals had last seen sunlight. They found that the wood was approximately 476,000 years old. This is much older than any previously known wooden structure, compared to previous records of wooden structures dating back 9,000 to 11,000 years.

Evidence of higher level cognitive planning

Artifacts show that our ancestors used stone tools to shape objects. Researchers at the University of Liverpool found evidence that they prepared pieces of wood to fit together, much in the same way as modern joiners work. The discovery changes the archaeological approach from focusing primarily on stone tools to recognizing a significant ‘Wooden Age’. This implies that species that preceded Homo sapiens had advanced cognitive and physical skills.

Why does the wood of Kalambo Falls not rot?

The well-preserved condition of these wooden artefacts is due to the special waterlogged environment of the Kalambo Falls. Because oxygen could not reach them, the wood survived for about 500,000 years. Located near a high waterfall on the Zambia-Tanzania border, the site holds a comprehensive record of human history from the Stone Age to the Iron Age.