I believe कुत्ता have souls. I believe tht my dog amber is still with me in my दिल and tht she left a little bit of her soul and kind दिल for me until I met her again someday. :)
I don't think people have souls that go to heaven या कुत्ता likewise. I think we all just end up decaying in a whole.However if someone had a soul that deserved to go to heaven this would probably be कुत्ता and not people.Dogs can't talk, but with words I hurt people so easilly, and when someone tries to comfort me even the sweetest words just alienate me.On the other hand my dog only with a look,much और sincere than words can wipe away all my sadness and make me feel better, while he really hasn't anything to earn, and even if he had he wouldn't know. And कुत्ता are like that without relegions telling them that if they are good they will go to heaven, if bad they go to hell.
Of course they have souls and go to heaven. Don't believe all that religious bullcrap priests tell u. I'm Baptist, but I know that कुत्ता go to heaven.
I don't think they go to heaven, जानवर are just God's creation and a speaking vessel sometimes. I don't think जानवर have a place to go after they die. In Job, we read about how God takes care of his creation but he never states that they will have a happy ending या that their is a place for them to go. This is a KJV Christian perspective.
Other religions may have a afterlife for जानवर but as far as ईसाई धर्म goes I challenge anyone that says जानवर या pets go to heaven