Citing biblical passages that assert that animals not only go to heaven, but get along with one another when they get there, Francis was quoted by the Italian news media as saying: “One day, we will see our animals again in the eternity of Christ. Paradise is open to all of God’s creatures.”

Theologians cautioned that Francis had spoken casually, not made a doctrinal statement.

The Rev. James Martin, a Jesuit priest and editor at large of America, the Catholic magazine, said he believed that Francis was at least asserting that “God loves and Christ redeems all of creation,” even though conservative theologians have said paradise is not for animals.

“He said paradise is open to all creatures,” Father Martin said. “That sounds pretty clear to me.”