Thank you for your encouraging comments.
In our first Animals in Heaven article we cited a Revelation 4 passage that actually mentions animals being in heaven in the original Greek, though omitted in the translations.
The oldest reference in the Bible to sacrifices originating in pagan countries, is the story of Abraham and the fact that he brought the sacrificial system with him, way before it was made into concessionary and limited law in the Bible.
In the Love of the Lord,
Frank and Mary