At the Kalambo Falls site (not "Columbo Falls"), researchers found a 476,000-year-old wooden structure with carefully shaped, interlocking logs. This predates the earliest Homo sapiens fossils by over 100,000 years, and supposedly modern brain organization too. Building it required planning ahead, selecting and shaping materials, and carrying out sequences toward future goals. Intelligent behavior emerges far earlier than expected.
476,000-year-old wooden structure at Kalambo Falls Site B shows early human planning and construction

Key facts
- Kalambo Falls Site B site contains wooden structure with carefully worked logs, deliberately shaped and interlocking
- Structure dated to 476,000 years ago
- Predates earliest fossil evidence of Homo sapiens by over 100,000 years
- Predates supposed emergence of modern brain organization
- Construction required planning ahead, selecting and shaping materials, understanding how pieces fit together, and carrying out sequence of actions toward future goal
- Behavior appears before brain story says it should, indicating intelligent behavior emerges earlier than traditionally understood
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