
In A Brief History of Intelligence; Max S Bennet among other things tells about this seminal event in the development and evoution of human intelligence and dominance!
The average human started walking on two legs instead of four!
Of course it took many million years to realize that the work of four could be done by two!
Bipedalism apparently evolved for many reasons none of which could be conclusively proved but are sound in nature!
The first obvious thing is that when you start walking on two legs is the amazing liberation of the hands! This would have probably enabling early humans to carry food, tools, and infants over long distances!
The you have the energy efficiency! For traveling between patches of resources in a changing environment, walking on two legs is more energy-efficient than knuckle-walking
As forests in Africa shrank, moving between trees required traversing open, tall-grass savannas, where standing upright helped detect predators and see over vegetation.
There was also the issue of Thermoregulation or Cooling! An upright posture reduces the body’s exposure to direct, intense sunlight,, which helps keep the body cooler and protects the brain from overheating.
Standing upright allowed for easier reaching of fruit in low-hanging branches and assisted in carrying more food at once!
Which is why you even see many animals trying to replicate the same!
Let us hope that they do not realize that Bipedal is the next step though!
Then again if you thought that Bipedalism is all hunky dory then you probably never had a back pain! Now that is a matter for another blog!
Hunky dory were also the hallmark of movies by Murali Mohan!
Now stop your Bipedling! And sleep!
Shubh ratri!







