As others mentioned, tool use wasn't restricted to homo sapiens. I think this makes sense, no? We didn't spontaneously use tools, it must have evolved incrementally in some way.

I think we see shades of this today. Bearded Capuchin monkeys chain a complex series of tasks and use tools to break nuts. From a brief documentary clip I saw [0], they first take the nut and strip away the outer layer of skin, leave it dry out in the sun for a week, then find a large soft-ish rock as the anvil with a heavier smaller rock to break open the nut. So they had to not only figure out that nuts need to be pre-shelled and dried, but that they needed a softer rock for the anvil and harder rock for the hammer. They also need at least some type of bipedal ability to carry the rock in the first place and use it as a hammer.

Apparently some white-faced Capuchins have figured out that they can soak nuts in water to soften it before hammering it open [1].

[0] https://www.youtube.com/watch?v=fFWTXU2jE14

[1] https://www.youtube.com/watch?v=N7sJq2XUiy8

This process also display coordination within a group and memory. Quite impressive.

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