When the distinction between humans and animals becomes blurred it leads to both the cheapening of human life and the elevation of animal life. According to the Bible man was a separate creation from the animals, even though God used the same "body plan" for both. But if evolution is true, then man is just a slightly higher animal, not fundamentally different as the Bible teaches. The Bible does teach that we are to take care of the earth and to treat animals appropriately.

A basic idea behind evolutionary thinking is that continuous change is what is normal and expected. This ends up manifesting itself in such things as relativistic morality (there is no absolute right and wrong), and even in our judicial system where law is seen as something that needs to change to reflect shifts in popular will.