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A study in primates demonstrated that the SNAR-B1 is a small non-coding RNA unique to humans, having evolved after the Homo-Pan divergence, and is well-expressed in testis and differentially expressed in brain regions [Parrott et al. DOI:10.4161/mge.18478]. Further research confirmed its expression in human testis and its co-immunoprecipitation with the protein NF90b, supporting its potential role in tissue-specific regulation [Parrott et al. DOI:10.1093/nar/gkq856].