But with every mishap he was learning.

The longer he walked, the better he walked.

He was adjusting himself.

He was learning to calculate his own muscular movements, to know his physical limitations, to measure distances between objects, and between objects and himself.
His was the luck of the beginner.

Born to be a hunter of meat (though he did not know it), he blundered upon meat just outside his own cave-door on his first foray into the world.