You will notice that that passage mentions nothing about religious belief or evolution, it's simply our biological classification, because like it or not we share similar traits to other animals, like those listed above. Muscles, internal digestion, locomotion, etc. Our Species is Human (actually Homo Sapien) of which we are the only animal classified under that group.

"We submit to the majority because we have to. But we are not compelled to call our attitude of subjection a posture of respect." Ambrose Bierce