Representative fish from each day and each temperature during the fin regeneration exercise. As early as 2 dpa, there is a dramatic increase in area of regeneration in the 30°C fish (G) when compared to the RT/28°C fish (A and D). This trend continues throughout all time points measured, 3 dpa (B, E, and H) and 6 dpa (C, F, and I). Scale bars provided values for ImageJ measurements; dpa, days post amputation.