When still hunting, you are walking slowly and calmly BUT you are still observing your prey. If you could answer both as the same amount, then that is the answer. If not, then it is mostly walking to get around. Even though you are observing your surroundings for prey or predetors, you are mostly walkign just to get around to the area you need to get to.
The main reason for the wall's construction had always been defense. Since China's first dynasty, the empire faced a near-constant threat of attack from the nomadic tribes to the north. This included those famed Mongols as well as lesser-known groups like the Xiongnu and the Göktürks.
