There doesn't seem to be, strictly speaking, any official teaching of the Catholic Church about whether animals have souls or not. 

The sacraments are given to us as ways to nourish, in various ways, an active love for God and neighbor. They are means to an end, not ends in themselves. 

Historically, one of the points of disagreement between Martin Luther and Roman Catholic leaders had to do with the connection between faith and good works. Luther insisted that salvation depended on faith alone, while Catholic teachers responded that one's eternal destiny required good works. 

There is no mention in the Bible of God establishing the Sabbath on any particular day of the week

This may come as a surprise, but Catholics not only believe in spirits of the dead, but we take this idea far more seriously than do many other Christians and other believers.

Catholics and Protestants agree that to be saved, you have to be born again.