Human

The most average and basic of all of the average and basicness. Humanity is adaptable (within reason) and basically the default here. They will represent Aristotle's Virtuous Mean in most circumstances, and otherwise be as we know them today (maybe a bit shorter, smellier, and dirtier, but otherwise).
If you REALLY need me to go into detail with all the other options below, how have you functioned long enough in real life to learn how to read?