Very simply - a man who takes estrogen would gain more feminine features and lose some of his manly features. For the most part, testosterone is what makes men men and estrogen is what makes women women. Quick Overview of Estrogens and Testosterones: Estrogens are a type of steroid hormones produced by both men and women. They are the conterpart of the hormone 'testosterone' which is also present in both men and women. Estrogen hormones and testerone hormones are both sex hormones, that is they affect cells of the human body in such a way that gives each of us the characteristics of a man or a woman.
poÂ·lar bodÂ·y. one of two small cells formed by the first and second meiotic division of oocytes; the first is usually released just before ovulation, the second not until discharge of the oocyte from the ovary; in mammals, the second polar body may fail to form unless the oocyte has been penetrated by a sperm.
Surprisingly, the polar bears' skin color is black. The bears'  black skin absorbs heat from the sun. Under the skin is a thick  layer of fat in healthy individuals. Even in the coldest Arctic  weather, the polar bear is very comfortable. The Polar bear can  swim in ice laden sea water quite comfortably.