What were the primary tools used during the ice age by primates? (using Boolean operators)?

Question

Analyze the topic into key concepts and list three keywords here.
Combine the three keywords into one search statement that uses two diffrent Boolean operators and at least one wildcard operator for truncation.

Answer 1

Sticks and rocks were the only tools available at the time for primates. Other than their hands, of course.

Answer 2

oh please, primates don't use tools.....the first proto-humans who started to use tools were the Neanderthals.