非洲扎伊尔境内，一只木筏由老猴领着七八个小猴充当船工，撑篙、摇桨总是有条不紊，中途有人落水，猴们会下河救起；到了对岸，由老猴问过渡人讨渡钱．印度尼西亚有一种叫“里贝”的牛，体型比一般牛大；四肢极为粗壮，泅水能力很强．它泅水时，背部露出水面，十分平稳，当地人 In Zaire, Africa, a raft is led by monkeys and seven or eight monkeys are used as boat workers. Pole vaulting and pitching are always orderly. Someone is drowning in the middle of the river and the monkeys will come down the river to rescue them; on the other side, they are asked by the old monkeys. Transitional people can get money. In Indonesia, there is a kind of cattle named Ribey, which is bigger than the average cow. The limbs are extremely thick and strong. When it drowns, the back is exposed to the water and it is very smooth. The locals