In theory our ancestors began to walk upright for a variety of reasons. 1. It allowed them to see farther to spot danger sooner. 2. It freed their hands for carrying tools (weapons). 3. It required less energy thereby giving them extra endurance. Personally I think it was their teens just rebelled at using all fours and walked upright to spite their elders.
In theory our ancestors began to walk upright for a variety of reasons. 1. It allowed them to see farther to spot danger sooner. 2. It freed their hands for carrying tools (weapons). 3. It required less energy thereby giving them extra endurance. Personally I think it was their teens just rebelled at using all fours and walked upright to spite their elders.