For me, the difference between a human and an animal has more to do with some structure of thinking. Animals can think but they do not “know” that they think. We do. More than that, we also “know-2” that we “know-1”. We may look at the whole thing, as we are thinking at one dimension higher than animals.
To explain what sets human apart from their ape relatives, researchers have long hypothesized that it is not so much the DNA sequence, but rather the regulation of the genes (i.e. when, where and how strongly the gene is expressed), t * Human brains 99% similar to chimpanzees, what’s in the other 1%?
www.sott.net/article/446082-Human-brains-99-similar-to-chimpanzees-whats-in-the-other-1