Okay, the user wants me to translate "evolutionary biologist" into Simplified Chinese. Let me check the rules again. Rule 1 says to translate all content into Simplified Chinese. Rule 2 says if it's already in Simplified Chinese, leave it as is. Rule 3 is to provide only the translation without explanations.
First, I need to confirm if "evolutionary biologist" is already in Simplified Chinese. It's an English term, so it's not. The correct translation for "evolutionary biologist" would be "进化生物学家". Let me double-check that. "进化" is the Simplified Chinese for "evolutionary", and "生物学家" is "biologist". Yes, that seems right. I should make sure there's no alternative translation. Maybe "进化论生物学家"? No, that's not standard. The standard term is "进化生物学家". So the translation should be "进化生物学家". No explanations, just the translation. Alright, that's it.