The term ALPACA COUSINS refers to the animals llamas, vicunas, and alpacas, which are all related species of South American camelids. Llamas and vicunas are both six-letter words, while alpacas are five letters. All three animals are known for their soft wool, which is used to make clothing and other items. The Incan people of Peru were the first to domesticate these animals, and they are still found in herds in the ANDES Mountains of Peru.