Guanaco is a species of South American camelid, related to the LLAMA and ALPACA. It is the largest wild member of the camelid family and is native to the mountainous regions of South America. The LLAMA is a domesticated species of South American camelid, while the ALPACA is a domesticated species of South American camelid bred specifically for its fiber. Both the LLAMA and ALPACA are closely related to the guanaco, but are smaller in size.