Qian Fuchun, a former deer breeder, picked up the rhinos when they were shipped from South Africa to Guangzhou, capital of Guangdong province.

Qian said at first sight, they were frightening. "A 4-year-old rhino is already huge, and its horn on its nose is terrifying. Besides, the animals looked so ugly when I saw them," he said.

He recalled that they ran into a fence "because the wild animals were scared of the wooden walls". No one could approach them in the first two months, and several breeders quit.

As time went on, Qian saw the hostility reduced, and he touched one rhino's tail one day. Surprisingly, the rhino didn't react in anger. Instead, it asked for more grass by shaking its bottom.

After three months, Qian and his colleagues could climb on the back of the rhinos and ride them for a minute as the interaction deepened.

The rhinos have grown mature, three years after they came to Kunming, when they were an average of 4 years old. Breeders grouped the three male and four female rhinos into small "families" so they would reproduce when released into the wild, Qian said.

Usually, large herbivores such as rhinos must be given tranquilizers before being loaded into a transportation cage. However, considering the side effects, breeders decided instead to coax the rhinoceroses into the cages, allowing them to become familiar with the vehicle. On March 19, cages tailored for carrying rhinos were brought to the wild animal park.

Liu Chunbiao, another breeder, said the rhinos had to practice how to get into the cages and be transported to the new home. "We even had to lure the rhinos because they didn't want to be trapped," Liu said.

Liu said rhinos like to be tickled, and he will do that on the long trip to Pu'er to comfort the animals.

After arriving at Taiyanghe National Forest Park in Pu'er, the rhinos will live in captive areas for a while, according to Tang, the animal park's deputy general manager. After the rhinos get used to the new environment, breeders will try to release them into the wild, she said.

Contact the writers at huyongqi@chinadaily.com.cn and guoanfei@chinadaily.com.cn

Li Yingqing and Zhang Yuchen contributed to this story.