Comments by "John Cunningham" (@johncunningham4820) on "How Humans Became (Mostly) Right-Handed" video.

  1. Once our Ancestors Knuckle walked out onto the Plains . Firstly , we stopped brachiating and secondly we had to learn to STAND UP . A Savage period of Natural Selection came into play here . Development of the Fully Opposable Thumb , Proper Feet and an alteration to our Hip Joints . Since our Lower limbs were no longer an extra set of Hands a Separation of specialisation seems reasonable for our New , Nimbler Hands .
    1