PREreview of Acoustic and postural displays in a miniature and transparent teleost fish, Danionella dracula

It is an interesting paper to read generally. The tilte of this study is "Acoustic and postural displays in a miniature and transparent teleost fish, Danionella dracula" In this study, the main research intent was to provide a behavioral baseline for studies of acoustic communication during social interactions in Danionella dracula, a miniature species of cypriniform fish. They describe sound production in D. dracula. They also found that males produce relatively simple, broadband sounds only during aggressive encounters and that females appear to be silent. The introduction part is completely clear, easy to read and catch up; Background studies, studied species and research aims were straightforward and fluent. Although I would suggest, It might be worthwhile to separately categorize the aim of research and research questions in the last paragraph of the introduction accordingly. In the materials and methods part, the number of fish used (individually and/or in group tests) in the study is not clear yet and maybe in this section a graphic view of the experimental timeline per each part could add extra value and make it more clear for readers. The results part is clear and well-written and easy to follow. And finally, the discussion part addresses all results and measurements accordingly.