Evolution does not teach that humans are animals; biology in general
does (and so does the Bible, in Ecclesiastes 3:18-21). More
specifically, humans are a species of primate, which is a category of
mammal, which is a category of vertebrate, which is a category of
animal. This was known more than 2000 years ago.
"Behaving like animals" does not mean anything, because different
animals behave in different ways. A part of human behavior is the
ability of people to learn and to modify their behavior according to
cultural norms. Evolution teaches that people behave like humans.
Creationism teaches that similarities are designed, that God designed
our bodies to be like animals. If God designed us to be like animals,
then (creationism teaches) we should behave like animals.
