- Llamas are bigger. While the trend to breed for larger, more robust llamas has gone by the wayside, if a llama and alpaca stand side-by-side, the llama will still be able to look over his smaller, fluffier cousin.
- Their ears are different. Llamas have longer, “banana-shaped” ears, while alpacas’ are shorter and straighter.
- Llamas have less hair coverage. Alpacas grow fiber on their face and cheeks, and all but the wooliest llamas (or those with alpaca in their background) have cleaner faces.