I don't know any where in the Bible that says that animals who have lived on earth and died
will or
will not go to heaven. What we do know is that God created the heavens, the earth, and all that is in them, which would include animals, and that
Romans 8:21 (NIV, Life Application Study Bible)
that the
creation itself will be liberated from its
bondage to decay and brought into the freedom and glory of the children of God. For this scripture verse, the study section in this Bible states: "One day
all creation will be liberated and transformed.
Guess what? We know there is a horse in heaven!
Revelation 19:11
I saw heaven standing open and there before me was a white horse... These verses, Revelation 6:2, 19:11, and 19:14, also speak of a white horse in heaven.
I hope this comforts you.