One Small Animal
noun
One small animal is one small animal. Use this to count small animals like cats and dogs.
This is a jukugo word that uses the on'yomi readings of the kanji. You should be able to read this on your own. Be careful of the shortening and the rendaku.
そこには、一匹のカエルが座っていた。
A lone frog was sitting there.
朝起きると、目の前にハムスターが一匹いた。
When I woke up in the morning, there was a hamster in front of me.
アイツって、ほんと一匹狼だよなー。
That guy is really a loner, isn’t he?