更新1:
I have to cats that I raised from the time they were really small. I had to bottle feed both of them and the vet thinks they were both around three weeks old when I got them. They are from two different litters and I got them a year apart. They both purred when we first got them but after a few weeks both of them stopped and now that they are grown neither of them purr at all. I was wondering if purring was maybe something that they learned from their mothers.
