Hair Loss

Our cat is about 2 years old. is an indoor cat. been spayed. Doesn't go around any other animals. the last two months she has had a bald patch on her back by her tail. We thought she had dry skin. In the last two days, she has lost all of her hair on the…

what was your experience/side effects. i heard something about hair loss/thinning. i have mild acne and oily skin.

Did we wear clothes because we evolved into a hairless state, or did we evolve the hairlessness as a result of wearing clothes?