Data file: waxmoth_parentals_hybrids.csv This file contains the phenotypic data for males of the Kansas line, the Florida line, and their hybrid males (Kansas female crossed with a Florida male). The columns are: ID: identification of each male. KS= Kansas line, FL=Florida line, HY= Hybrid Year: the year in which the phenotypes were measured (year 1 or year 2) Development time: the time (days) from egg to eclosion for each individual Mass: the mass (mg) of the individual at eclosion PR: pulse-pair rate, in milliseconds PA: pulse amplitude, arbitrary units AI: asynchrony interval in microseconds