Column Explanation Trial_Number A unique identifier for each trial conducted Leg_condition "A categorical descriptor of the leg condition of the harvestmen tested in the mating trials. ""8_8"" = both the female and the male had 8 legs ""8_6S"" = the female had 8 legs and the male 6 legs, and had lost the two sensory legs. ""8_6L"" = the female had 8 legs and the male 6 legs, and the male had lost 2 locomotor legs." Treatment "The leg condition of the males, reflecting whether the male had all of its legs (""Control"") or if it had lost 2 sensory legs (""Sensory autotomy""), or 2 locomotor legs (""Locomotor autotomy"")" Female_Max_body_width "The maximum body width of the females, in mm" Female_Area_mm2 "The area of the female's body, in dorsal view, in mm2" Female_leg_I "The length of the left leg of the first pair of the female, in mm" Female_leg_IV "The length of the left leg of the fourth pair of the female, in mm" Male_body_width "The maximum body width of the males, in mm" Male_Area_mm2 "The area of the male's body, in dorsal view, in mm2" Male_leg_I "The length of the left leg of the first pair of the male, in mm" Male_leg_IV "The length of the left leg of the fourth pair of the male, in mm" Pedipalp_length "The length of the pedipalp (a mouthpart) of the male, in mm" Pedipal_femur_length "The length of one body segment -the femur- of the pedipalp (a mouthpart) of the male, in mm" Size_ratio The ratio of the body area of the female divided by the body area of the male Outcome The qualitative outcome of the interaction (see the Methods on the paper for a full description of the three outcomes) Interacted "Binary indicator of whether the pair interacted or not during the trial. 0 = no interaction, the same as 'nothing' in the previous column, 1 = the pair interacted, either with or without mating (including 'interaction' and 'mating' from the previous column)" Mated "Binary indicator of whether the pair mated or not during the trial. 0 = no interaction, the same as 'nothing' and 'interaction' in the previous column, 1 = the pair mated (including only 'mating' from the previous column)" Interaction_length_s Total duration (in seconds) of the interaction (see the Methods on the paper for the description of interaction) Mating_length_s Total duration (in seconds) of the mating.