This repository contains 3 original data files for a study of heritability in a half-sibling design of outbred multi-parent population of Drosophila melanogaster treated with 3 nutritional conditions. 1) lifespan_only.xlsx contains lifespan records. Columns: setDate, start date flipDate, observation date days, age fID, identity of line repl, replicate number treat, diet treatment (HS=high sugar, STD=standard, LY=low yeast) NstartF, starting number of females NstartM, starting number of males box, ccord, rcoord are position coordinates of a vial in a holding box deadF, number of female dead deadM, number of males dead cens, censored events carriedF, dead females that flip to a new food vial carriedM, dead males that flip to a new food vial flipper initials of observer time, time in which 108 vials were flipped. 2) feclife_with-image-ids.xlsx - lifespan observation vials are matched with a specific image of eggs collected at a specific day (once a week). Columns: cameraid, image id assigned by the camera handcounted, images counted by hand handcount, number of eggs on an image counted by hand training_set, images that were used to develop and test a prediction model drop_from_lifespan & visually_recheck, quality control. 3) egg_images.tgz - all original images. Each image represent fecundity from a single vial at a specific date (in feclife_with-image-ids.xlsx ). The images have been cropped to remove the excess area outside the egg disc. The area outside the circular disc has been converted to black to peripheral eliminate noise.