Photo taken on March 1, 2018 shows a 3-month xoloitzcuintle puppy in the Xolos Tarango hatchery, in Mexico City, capital of Mexico. With an average life of 12 to 14 years, the xoloitzcuintle, also known as Mexican hairless dog, is a virtually hairless dog from Mexico. (Xinhua/Francisco Canedo)