You know that expression, 'wild horses couldn't drag me away'? Well, let me tell you, that was obviously made by someone who's never been on the other side of a lead rope when a wild horse starts running. Such are the things we use to do in our childhood.
Younger brothers still follow the traditon of riding wild horses without saddle and any support.
Just imagine taming a wild horse which nobody rode on before and the surrounding is such a pristine wilderness. It is the nature which give us the guts and confidence to take the risk of riding these powerful animals who are born free and not many dare to ride them.
Chimps spend lots of time on the ground - they walk between trees and favorite spots, search for food, and play with each other. They may even nap on the ground in the middle of the day. However, chimps sleep in trees at night. They build nests by folding down branches near the tops of trees.