Description of data: The file peromys.rh is a file of recapture histories of inbred and outbred Peromyscus mice. Mice were collected from a mixed deciduous forest in Cook County, Illinois, and brought into the lab for 3 generations of matings. Progeny with inbreeding coefficients of F=0 and F=0.25 were released into the same habitat from which their ancestors had been collected. The survivorship of the individually-marked inbred and outbred mice was then monitored by a trap and release regimen. The file peromys.rh contains recapture histories of individual mice from this experiment. The format of the data is explained in the file. For furhter information, please contact Kim Hughes (kah5@midway.uchciago.edu) or Bob Lacy (rlac@midway.uchicago.edu).