Ancient Stone and Bone Tools:
A recent study found that ancient ancestors used bone tools 1.5 million years ago, nearly a million years earlier than believed, challenging the idea that toolmaking was unique to humans.The earliest stone tools (3.3 million years) and bone tools (1.5 million years), indicating that tool use predates Homo and was likely practiced by earlier hominins. It is argued that toolmaking required conceptual thought and was unique to humans. Discovered in 1974, Lucy, a 3.2-million-year-old human ancestor, played a key role in evolution, possibly using her hands for tools.
