duck, eagle, parrot mouse, monkey, bat butterfly, ant, mosquito crocodile, snake, turtle
I gave my students this multiple choice question: Which of these groups animals are ALL mammals?

Only one answer is correct among these 4 choices:
- duck, eagle, parrot
- mouse, monkey, bat
- butterfly, ant, mosquito
- crocodile, snake, turtle

Could you tell me which one is correct?

mouse, monkey, bat