As you can see from the photo, there really are a lot of differences between llamas and alpacas.
The llama is roughly twice the size of the alpaca and the llama has a very coarse outer coat over a softer inner coat
as opposed to the alpaca, which has a very fine, single coat.
In addition, the llama produces far less fiber per animal than the alpaca, despite its much larger size.
This is because the alpaca was domesticated and carefully bred for over 5000 years as a luxury fiber-producing animal.
The llama has been bred for the same amount of time as a pack-carrying animal.