In marine turtles. the sex of hatchlings is determined by their egg incubation temperature. Global warming may increase the extinction risk by skewing hatchling sex ratios. Assessment of this risk at the population level requires the identification of sex in hatchlings and juveniles. https://www.spidertattooz.com/SQB-PROTON-QUAD-M4-MAG-POUCH-INSERT-SMOKE-GREY/