As sand temperatures continue to rise, concerns about the future of sea turtles are growing. Hotter nests not only skew sex ratios—producing more females—but also reduce hatchling survival, slow growth, and increase the likelihood of physical deformities. Yet one important and often overlooked question remains: does this heat also affect cognitive ability—how well hatchlings can learn, adapt and respond to the rapidly changing world they face from the moment they emerge?