Zhang Zian raised his head to look at the red sun that was still up in the sky. The temperature of the air was also increasing with the rise of the sun. He knew that the whale's grayish black skin would absorb twice the heat of sunlight and that its thick fat layer would prevent it from releasing heat. Although the surface of the whale had not shown signs of decay, the decay in its body was probably accelerating further under the heat of sunlight, which could not be stopped.
After most animals died, they would start to rot from the inside to the outside. The first things that would rot were their internal organs, and it was the same with whales.
Besides that, there was a unique part of whales: The whale's skin was too thick and tough.