Okay, the user wants me to translate "guinea pigs" into Thai. Let me check the translation rules again. The first rule says to translate all content into Thai. The second rule states that if the content is already in Thai, leave it as is. The third rule is to provide only the translation without any explanations.
So, "guinea pigs" is in English. I need to translate it. The Thai translation for guinea pigs is "หนูป่า" (pronounced "nú pâa"). Wait, is there another term? Let me confirm. Sometimes "guinea pig" can be translated as "หนูอเมริกัน" (American mouse), but the more common term is "หนูป่า". I think "หนูป่า" is the correct translation here. I'll go with that. Make sure there's no explanation, just the translation. Alright, that's it.