Figure S1.

Presentation of the effects of a mild testicular temperature increase on sperm morphology in men, bulls and rams according to the duration of epididymis transit and stages of spermatogenesis (8,13,14,16-21,26-28,43-45,53). Animal studies used scrotal insulation. Red squares represent heating periods. Orange squares represent a significant effect on sperm morphology. White squares represent an absence of significant effect. In: during heating; AF: after heating; STP: duration of spermatogenesis; ST: scrotal temperature. *, ST: no scrotal or testicular temperature measurement.