bugs,snakes,mice
Hamsters hear with their ears, just like people do.
They can break into people's house and steal food
All the better to hear you with
This is an adaptation.
Only the ones that live.
Baby mice can be separated once they can see and hear and have fur as long as you can tell the difference between a boy and a girl. Because mice can have babies when they are 4 weeks old!
No, but there such animals as very small mice but not a very small mice (grammar mistake)
Well, mice are individuals as us, and some may well be deaf or hard of hearing. But generally they hear just fine.
Your cat may hear things inside the wall that you don't know about. Mice. Or insects, like roaches. Or your cat may just be being a cat. They are silly sometimes!
Mice are very social animals. Their noises are their way of talking. Normal conversation for them sounds like quiet chatter. They also have quiet squeaks to show pleasure, as when they are being groomed. They have mid-range squeaks when they are being territorial, slightly louder short squeaks when they have fearful anticipation, and louder/longer high pitched squeaks when they are angry or hurt (physically or emotionally).
mice can run very quickly away from predators, they can sense movement, and have to gnaw on things to trim their teeth down