How are goat breeds grouped by their ear shape and wool production?

In the context of livestock farming, goat breeds are often categorized into three broad groups based on their physical characteristics and primary utility:12

• Prick-eared goats: This group includes many Swiss breeds, such as the Saanen and Toggenburg, which are primarily valued for milk production.12
• Eastern (or Nubian) goats: These are characterized by their long, drooping (lop) ears. The Nubian is the primary example of this group, often recognized for its large ears and Roman nose.12
• Wool goats: These breeds are specifically raised for their fiber production, such as mohair or cashmere. Notable examples include the Angora and the Cashmere goat.123

While these groupings provide a general framework, some breeds possess unique ear traits that distinguish them further. For instance, the LaMancha is a dairy breed specifically known for its significantly reduced "gopher" or "elf" ears.14