Growth of animals for 3 days at 21% oxygen incubated at 20C. For all panels, statistical significance was calculated using one-way ANOVA followed by Tukey’s multiple comparison test or Dunnett’s multiple comparison test (G and H). Error bars represent standard deviation. n.s., not significant,*p value < 0.05,**p value < 0.01,***p value < 0.001. See also Figure S6.