The inner ear provides sensory information of position and acceleration of the head during movement. It is thought that spatially specific behaviors influence the shape of the inner ear, as morphology will change to maximize sensitivity to these behaviors. In birds and mammals with agile and spatially complex movements, differences in canal shape are thought to enhance sensitivity to these behaviors. Documentation of inner ear variation in caecilians and fossorial snakes indicates that both groups may have adopted novel morphological traits thought to enhance sensitivity to movement below ground. However, it is not well understood if these relationships extend across vertebrates. By surveying the morphological variation within the inner ears of anurans, we can compare the morphological diversity against ecological niches to better understand how form relates to the life history of these animals. We present a survey of the morphological diversity of the inner ears of anurans across taxa. Inner ear endocasts were generated from high-resolution micro-computed tomography (µ-CT) data, and we document significant variation in the size and shape of the inner ears across species. We investigate the influence of size, ecology, and phylogeny on inner ear morphology using 3-D geometric morphometrics and phylogenetic comparative methods.