show Abstracthide AbstractTo compare gene expression patterns between mouse and corn snake tail development, we generated RNA sequencing data for 5 time points for the mouse (E9.5 to E13.5) and for 4 time points for the corn snake (day 2.5 to 5.5 post oviposition). Using this dataset, we identified numerous instances of species-specific temporal variations in gene expression, including developmental genes involved in anterior/posterior patterning.