pika

n. 鼠兔

pi.ka

n.（名词）
Any of several small, tailless, furry mammals of the genusOchotona of the mountains of North America and Eurasia, resembling guinea pigs but belonging to the order of lagomorphs that includes the hares and rabbits. Also called coney rock rabbit
鼠兔：鼠兔属 中的一种毛茸茸的无尾小哺乳动物，产于北美和欧亚大陆的山中，貌似豚鼠但属于包括家兔和野兔的兔形目 也作 coneyrock rabbit

来源：
Tungus piika
通古斯语 piika
perhaps from Russian pikat` [to squeak]
可能源自 俄语 pikat` [吱吱叫，发出短而尖的喊声]