How is it that two cultures that never interacted, for example the Greeks and Native Americans, both invented the bow and arrow?

by Dinosaurs_In_Suits

Or other similar inventions.

satuon

See https://www.reddit.com/r/AskHistorians/comments/12kmvv/did_the_bow_and_arrow_develop_independently_in/:

The earliest definite wood bows are Late Paleolithic and Mesolithic.

That's around 10000 BC.