The giant panda is the national treasure of China. Only China has giant pandas in the world, so many countries rent giant pandas from China 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. They are the only two giant pandas that don't belong to China. 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-1970s, 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 successively gave birth to seven baby pandas. With the passage of time, there are only two left now. These two baby pandas are now the only pandas in the world that don't belong to China. Their names are Shuangshuang and Xinxin.

Of course, this cactus is not the kind of cactus eaten by camels, but a kind of cactus for human consumption. The origin of cactus food is Mexico, where there are abundant edible cacti. For Mexicans, cactus is a good vegetable, with much higher nutritional content than bamboo, and giant pandas also like to eat it. Therefore, as long as the Mexican zoo adds some cacti to the giant panda every day, the problem of insufficient bamboo will be solved, so the giant panda can eat bamboo every day.

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