This evaluation is granted only in order to treat this creature with the respect it deserves. The centaur has a human head, chest and arms connected to a horse's body, whose fur can be of different colors. He is intelligent and capable of human speech, but at his own request they are not considered "persons". They have their own means of protection, so the Muggles, despite their widespread use, do not bother them. After all, centaurs cough at magicians as well - they make no difference between them and Muggles. Therefore, their lifestyle and habits are unknown.