Question

why do you think we draw the distinction between humans and apes at \complex tool use\ (2 sentences)

Explanation:

This distinction is drawn because human complex tool use involves planning, creating multi-component tools, and passing down toolmaking knowledge across generations through cultural learning, which far exceeds the more immediate, context-specific tool use observed in apes. Additionally, human tools are often designed to create other tools, a recursive ability that underpins technological advancement unique to our species.

Answer:

We draw this distinction because human complex tool use relies on advanced planning, multi-component design, and cross-generational cultural transmission of specialized knowledge, capabilities that are not matched by apes' more limited, context-bound tool use. Furthermore, humans alone demonstrate recursive toolmaking—creating tools to build other tools—an ability that drives cumulative technological progress absent in ape populations.