The B-36 took shape as an aircraft of immense proportions. However, the relative proportions of the size of prey mammals varied across regions. Males and females appear to be affected in equal proportions. Deer exhibit a broad variation in physical proportions. The adults are larger with different body proportions, less sexual dimorphism, and higher metabolic rates. The drawing represents ideal human body proportions. In so doing they helped inflate the bubble economy to grotesque proportions. Vitruvius developed a complicated theory of "ideal proportions" for the human figure. More recent estimates based on greater knowledge of azhdarchid proportions place its wingspan at . It is a complicating factor arising in statistical tests of proportions. The second was the law of definite proportions. It has the unusual proportions of 13&colon;15. There have been no reported adverse effects from this disparity in hippocampal proportions. Water and fat have the highest proportions by weight creating an emulsion. He was concerned with the visual appeal of rectangles with different proportions.