For those who want to completely separate humans from the animal kingdom you are like a leaf that did not know it was part of a tree.
"Our unique attributes evolved over a period of roughly 6 million years. They represent modifications of great ape attributes that are roughly 10 million years old, primate attributes that are roughly 55 million years old, mammalian attributes that are roughly 245 million years old, vertebrate attributes that are roughly 600 million years old, and attributes of nucleated cells that are perhaps 1,500 million years old.
If you think it is unnecessary to go that far back in the tree of life to understand our own attributes, consider the humbling fact that we share with nematodes [roundworms] the same gene that controls appetite. At most, our unique attributes are like an addition onto a vast multiroom mansion. It is sheer hubris to think that we can ignore all but the newest room." David Sloan Wilson, Evolution for Everyone, 2007
The ancient "Reptilian" components of our brain she calls our "Lizard Legacy"; the paleomammalian emotional brain she(Connie Barlow)calls our "Furry Li'l Mammal." Our neomammalian neocortex is our "Monkey Mind." And our distinctively hominid prefrontal cortex (at our forehead), with its executive function and capacity to override our base instincts becomes our "Higher Porpoise."