Another Difference Between Prophet Muhammad and Abraham Lincoln?

Of course, the major difference between Muhammad and the Great Emancipator, Abraham Lincoln, is that Muhammad took free people and turned them into slaves, whereas Lincoln's actions ultimately turned slaves into free people.  But consider another possible difference:  Lincoln said "I care not for a man's religion whose dog and cat are not the better for it."
Is there any evidence that Islam makes life better for dogs and not worse?