以下の文章を日本語に翻訳して下さい
Yes, alpacas can spit. It is a defense mechanism they use when they feel threatened or agitated. The spit is a mix of air, saliva, and partially digested food, and it has a foul smell. It is not something that alpacas do for fun or to be mean to humans, so it is important to approach them calmly and respectfully to avoid being spit at.