Pappotheriidae

例句：

1. 1. The Pappotheriidae is a family of small mammals that live in the Arctic.
   Pappotheriidae 是一类生活在北极的小哺乳动物。
2. 2. The Pappotheriidae are known for their unique adaptations to their cold environment.
   Pappotheriidae 以其对寒冷环境的适应而闻名。
3. 3. The Pappotheriidae includes species such as the Arctic Fox and the Arctic Weasel.
   Pappotheriidae 包括北极狐和北极鼬等物种。