Ardipithecus ramidus - Wikipedia
https://en.wikipedia.org/wiki/Ardipithecus_ramidusOur Earliest Ancestors - YouTube
https://www.youtube.com/watch?v=fXFQEMQ1nrkQuestions Raised About How an Ancient Hominin Moved | The Scientist Magazine®
https://www.the-scientist.com/news-opinion/questions-raised-about-how-an-ancient-hominin-moved-68488