The giant panda is a national treasure animal in China. Only China has giant pandas in the world, so many countries rent giant pandas to our country for exhibitions. Everyone knows that the panda's favorite food is bamboo, but in Mexico, South America, there are two giant pandas that don't belong to China, and they are the only two that don't belong to China, and they eat a lot of cacti instead of bamboo every day.

Why can such a country have its own giant panda now? It turns out that as early as the mid-197s, three years after China established diplomatic relations with this country named Mexico, our government sent a pair of giant pandas "Beibei" and "Yingying" to Mexico. Later, "Beibei" and "Yingying" gave birth to seven panda babies in succession. With the passage of time, there are only two left now. These two panda babies are now the only pandas in the world who don't belong to China. Their names are Shuangshuang and Xinxin.

Of course, this cactus is not the kind eaten by camels, but for people. The origin of cactus food is Mexico, where there are many kinds of edible cacti. For Mexicans, cactus is a good vegetable, and its nutritional content is much higher than that of bamboo, and giant pandas like it. So the Mexican Zoo adds some cacti to giant pandas every day. The problem that bamboo is not enough to eat is solved, so pandas can eat both bamboo and cactus every day.

If the zoo finds that the panda doesn't want to eat cactus, it will stop feeding cactus, but it seems that the panda doesn't refuse.