I believe that Patty appears to suffer from Aneroxia Nervosa. This is an eating disorder characterized by persistent energy intake restriction, intense fear of gaining weight and disturbances in self perceived weight or shape like with Patty.This sometimes happens when some people are restricting their food and weight as a way of controlling areas of life that feel out of their control and their body image.
<span>This variation be justified by: </span>Migration to an environment different from their birthplace, and adaptation to the available food, ultimately leading to speciation. because <span>birds use their beaks to eat.</span>.