According to christianity I don't think that anything happens to animals as they 'have no soul'.
Almost every other religion claims that animals do have souls. I am not sure what teh Jews and Muslims believe but Eastern religions tend to teach that all living things have (or are) souls who progress through existance through reincarnation until they eventually reach enlightenment...which can mean a number of things.
Almost every other religion claims that animals do have souls. I am not sure what teh Jews and Muslims believe but Eastern religions tend to teach that all living things have (or are) souls who progress through existance through reincarnation until they eventually reach enlightenment...which can mean a number of things.