Congratulations to Dr. Natalie Sopinka, Pauline Capelle and their co-supervisor Dr. Christina Semeniuk for recently having a review entitled “Glucocorticoids in fish eggs: variation, interactions with the environment, and the potential to shape offspring fitness” accepted in Physiological and Biochemical Zoology. This invited paper details the hows and whys of variation in egg cortisol within and across fish species, examines the impact of this maternal effect on offspring phenotype and fitness, and hypothesizes how both are affected by future environments faced by offspring. Great work team.