You are given a sentence in Italian. Your job is to translate the Italian sentence into English.
Example: Perché? Perché quel profitto fa sì che qualunque soluzione da noi creata sia infinitamente riproducibile su scala.
Example solution: Why? Because that profit allows whatever solution we've created to be infinitely scalable.
Example explanation: The Italian sentence is correctly translated into English, because the meaning is preserved.

Problem: L'antenato delle scimmie rimase sugli alberi. I nostri andarono nelle pianure.

Solution: The ancestor of the apes stayed in the trees; our ancestors went out onto the plain.