Seven Million Years Ago, the Oldest Known Early Human Was Already Walking
Smithsonian Magazine | August 24, 2022 | Brian Handwerk

The fossilized find, first uncovered two decades ago, suggests that early humans regularly walked on two feet some seven million years ago… Since many consider bipedalism the major milestone that put our own lineage on a different evolutionary path than the apes, Sahelanthropus could be the very oldest known hominin — the group consisting of modern humans, extinct human species and all of our immediate ancestors.

Well, I think seven million years is long enough to learn how to walk, don’t you?