Nice post Snake!

Here goes what I think about the original question:
1- Yes, I believe there is Heaven and Hell.
2- There might be animals there but not necessarily our pets, but I'm not sure.

Just to give you my reasoning without getting into any specific religion, I think Heaven and Hell only means to those who have spirit and are able to make a choice, which is only human.

Have you ever seen a wolf blaming himself for slaughtering sheeps which he even didn't wanted to eat? I've not seen one with conscience which I read as spirit. Conscience always judges us inside, blames us and drives us insane when we do wrong.

There is no such a thing for animals, they go by their instincts. Scorpion stings, that's in him, there is no punishment for him doing what he does nor there is a reward if he doesn't. But we have this prophet inside and we know very well what's right and what's wrong so there is Heaven and Hell for us. It can be just inside like a spiritual punishment/serenity or some other form we still don't know and we would find out after death.