Hello! I ran a quick search to figure out what this bar is for/how actions I do will affect it but I can't seem to find much info? Is there a past thread someone can direct me to? (It's above all of the genetics and colors and can be like 5/10, 12/12, etc)

Thank you, kindly!

in egglings it shows the ?/72 countdown to hatching, and in adolescent and adult pets it's their hunger bar (with 10/10, 100% being full and 0/10, 0% being starving, going down 1/10th per day that a pet goes unfed)

In hatchlings it does nothing, since they don't need to be fed.