DNA provides the information that is required to form a body. Its not surprising that we share so much DNA with apes given that we have skin, bones and muscles, hearts, arteries, veins and lungs, male and female, livers, spleens, kidneys, and intestines, glands and brains, just as they do. To consider us animals is not something new to science, but an attitude that’s been with us all along.
What differentiates different life forms is their soul, that which unites material processes into one living entity which behaves in accordance with its nature. Animals have instincts which determine their behaviour. These are organized through their central, peripheral and autonomic nervous systems. We share in much of that. We move our bodies in an organized manner; we have similar visual, auditory, tactile gustatory and olfactory perceptions, feelings such as fear, anger, pleasure, excitement and pain. When I got back from mass this morning, I wanted to ask my cat, what she considered to differentiate her species from ours, but she was off in some corner possibly updating her thesis on humanity; probably not. We have so much in common, and yet could not be more different.