This isn't possible except you have a system where there isn't competition and the survival of the fittest in the aspect of the food chain
The sizes of the bodies are different. If they both passed at roughly the same time and place, then the body with a higher temp is probably the larger one, and the cooler body is probably the smaller one.
Either that, or the warmer body was wearing darker/thicker clothes than the cooler one, or the shade of a tree just so happened to fall over one body but not the other, resulting in two different temperatures.
Hope this helped!
