1Co 2:9 But as it is written, Eye hath not seen, nor ear heard, neither have entered into the heart of man, the things which God hath prepared for them that love him. [Isa 64:4]
I don't believe our pets are in Heaven, they return to the dust - but I do believe that when GOD re-creates earth - that He 'can' reunite us with our pets.
Why would he repopulate the world with a whole new bunch of animals when HE is Good and understands the love between a pet and a human being - as He used Nathan to speak an analogy of a "pet lamb" to David, regarding David's sin and what was David's reaction to just the stealing of a pet lamb?
I and so many others have had pets when I was sick or very alone, that GOD has used in miraculous ways. I believe the verse above can also mean that, we have no idea how Wonderful things will be, future tense as well, in the new earth after he destroys the present ...
2Pe 3:10 But the day of the Lord will come as a thief in the night; in the which the heavens shall pass away with a great noise, and the elements shall melt with fervent heat, the earth also and the works that are therein shall be burned up.
Rom 8:19 For the earnest expectation of the creature waiteth for the manifestation of the sons of God.
Rom 8:20 For the creature was made subject to vanity, not willingly, but by reason of him who hath subjected the same in hope,
Rom 8:21 Because the creature itself also shall be delivered from the bondage of corruption into the glorious liberty of the children of God.
Rom 8:22 For we know that the whole creation groaneth and travaileth in pain together until now.
Rom 8:23 And not only they, but ourselves also, which have the firstfruits of the Spirit, even we ourselves groan within ourselves, waiting for the adoption, to wit, the redemption of our body.
Personally, I'm sick of debating and don't give a hoot who doesn't like what I just posted because I feel that The LORD gave me this when I lost my "best friend".
:p