**[Cleaner fish recognize self in a mirror via self-face recognition like humans](https://www.pnas.org/doi/10.1073/pnas.2208420120)** Animals have the ability to recognize themselves in mirrors, but it's unclear if this means they are self-aware. This study tested cleaner fish, Labroides dimidiatus, to see if their mirror self-recognition (MSR) is related to a mental image of their own face, like in humans. **The fish showed they recognized their own face in photos** and responded to marks on their own body, suggesting that MSR in these fish is due to a mental image of their own face. This study shows that using photos with mirror tests has great potential for understanding self-awareness in nonhuman animals. @mr27.near?