A proponent of evolutionary morality may claim that evolution programmed us with moral feelings.
But evolution also programmed us with the ability to do abstract computation (beyond that of other primates — those not extinct, anyway).
What Makes a Human Brain Unique
Experiment compares the way monkey and human brains respond to abstract information
The idea that integrating abstract information drives many of the human brain’s unique abilities has been around for decades. But a paper published in Current Biology, which directly compares activity in human and macaque monkey brains as they listen to simple auditory patterns, provides the first physical evidence that a specific area for such integration may exist in humans. Other studies that compare monkeys and humans have revealed differences in the brain’s anatomy, for example, but not differences that could explain where humans’ abstract abilities come from, say neuroscientists.
Our moral codes could be both embodied in us and created by us, using our brains, uniquely (among other animals still here on Earth) capable of abstract computation.