The methods taxidermists practice have been improved over the last century, heightening taxidermic quality and lowering toxicity. The animal is first skinned in a process similar to removing the skin from a chicken prior to cooking. This can be accomplished without opening the body cavity, so the taxidermist usually does not see internal organs or blood. Depending on the type of skin, preserving chemicals are applied or the skin is tanned. It is then either mounted on a mannequin made from wood, wool and wire, or a polyurethane form. Clay is used to install glass eyes and can also be used for facial features like cheekbones and a prominent brow bone. Modeling clay can be used to reform features as well, if the appendage was torn or damaged clay can hold it together and add muscle detail. Forms and eyes are commercially available from a number of suppliers. If not, taxidermists carve or cast their own forms.

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Taxidermists seek to continually maintain their skills to ensure attractive, lifelike results. Mounting an animal has long been considered an art form, often involving months of work; not all modern taxidermists trap or hunt for prized specimens.

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Animal specimens can be frozen, then thawed at a later date to be skinned and tanned. Numerous measurements are taken of the body. A traditional method that remains popular today involves retaining the original skull and leg bones of a specimen and using these as the basis to create a mannequin made primarily from wood wool (previously tow or hemp wool was used) and galvanised wire. Another method is to mould the carcass in plaster, and then make a copy of the animal using one of several methods. A final mould is then made of polyester resin and glass cloth, from which a polyurethane form is made for final production. The carcass is then removed and the mould is used to produce a cast of the animal called a 'form'. Forms can also be made by sculpting the animal first in clay. Many companies produce stock forms in various sizes. Glass eyes are then usually added to the display, and in some cases, artificial teeth, jaws, tongue, or for some birds, artificial beaks and legs can be used.