Colors and animals were, and are, used in coats of arms because they are used a symbols.
Coats of arms were used by knights to identify themselves to friend a foe when they were encased in armor and not otherwise recognizable.
The plural of "coat of arms" is "coats of arms".
Coats of Arms are associated with particular people or families of prominence, such as royalty and nobles, not with a surname.
Coats of arms were used to identify individuals of high status on the battle field when they were otherwise unrecognizable in their armor.
Coats of arms do not themselves have surnames.
People use it because its very warm and they use it to make coats that would have fur.
In the Middle Ages, coats of arms were used exclusively by the nobility on flags and armour. Fishermen would not have coats of arms.
Names do not have crests or coats of arms. Some individuals have coats of arms. Some families have crests; and some families of the same name do not.
heardly is the anwser
Coats of Arms belong to individuals, not to families.
European tradition, is a design belonging to a particular person (or group of people) and used by them in a wide variety of ways. Historically, they were used by knights to identify them apart from enemy soldiers. In Continental Europe, commoners were able to adopt burgher arms. Unlike seals and emblems, coats of arms have a formal description. In the 21st century, coats of arms are still in use by a variety of institutions and individuals. - Cited from Wikipedia, aswell as generic knowlege.