FMR1 and Anxiety: Given the omission of female Fmr1 KO mice from previous phenotypic characterizations and the broad implications of this exclusion, our study aims to further characterize this model by investigating sex‐specific differences by direct comparison of male and female Fmr1 KOs on tests of activity levels, anxiety behaviors, social behaviors, repetitive behaviors, and motor coordination, as well as hippocampal‐ and amygdala‐based memory.