This is going to stir up the “when did we really become human?” debate. In short it has been a whole lot longer than the “language began 60,000 years ago crowd”. I’ve always thought that it was certainly strange to we should have waited a million years after we became physically able to speak to actually talk. That’s counter intuitive and begs the question “Why was the hyoid bone selected if not to use?”
3 interglacial periods ago? Very cool.