Fig. 1

Comparison of survival curves illustrating the lack of significant influence of the season on the rats’ survival. A cohort of 85 Tp53 homozygous knockout male rats was born during the full year. To assess if the seasons of the year have an influence on survival of rats, survival rates for each season were; a – winter: January 1–March 31, b – spring: April 1–June 30, c – summer: July 1–September 30, d – autumn: October 1–December 31