This is a mount of the animal that has been replicated to its full real life size. Many museums across the world prefer them being prepared this way.
Taxidermy is a general term describing the many methods of reproducing a life-like three-dimensional representation of an animal for permanent display. In most cases, the actual skin (including the fur, feathers or scales) of the specimen is preserved and mounted over an artificial armature. In other cases, the specimen is reproduced completely with man-made materials.
The word “taxidermy” is derived from two ancient Greek words; taxis, meaning movement; and derma, meaning skin. Therefore, loosely translated, taxidermy means the movement of skin. This is a fairly appropriate definition as many taxidermy procedures involve removing the natural skin from the specimen, replacing this skin over an artificial body, and adjusting the skin until it appears lifelike.
The modern practice of taxidermy incorporates many crafts, such as carpentry, woodworking, tanning, molding and casting; but it also requires artistic talent, including the art of sculpture, painting and drawing. In a modern deer head mount, for example, the only natural parts of the animal used are the antlers and the skin. All of the other organs and tissues are recreated with man-made materials. The eyes are made from glass, the eyelids are sculpted from clay, the soft tissues of the nose and mouth are sculpted from epoxy or wax, and the manikin or "form" (which incorporates the anatomy of each muscle and vein) is made from polyurethane foam.