In the video they constantly say how it's remarkable that they can walk the way they do in their adult age and how no other person does so - however, I have reached my final height, and I can run without any trouble on my hands and feet due to the fact that I followed my dog around like this as a child. A bit differently, however, I don't keep my arms so stiff and move so slowly @_@ A bit surprising considering they do this every day and I rarely ever do it now unless someone tells me to prove it.
Out of curiosity, can anyone else do this? If not, can you do anything that's considered rare/unusual? I like to learn about this stuff x'D