(A) Dose–response for fecundity. ●, A. vaga; ◆, C. elegans. Dose rate was 26–38 Gy/min. ○, A. vaga; □, P. roseola; △, E. dilatata. Dose rate was 2.3 Gy/min; data represented by unfilled symbols are from ref. 1. Curve is drawn to fit data for A. vaga. (B) Dose–response for motion in response to touch 24 h after irradiation. Dose rate was 38 Gy/min.