Oktay This cat is in love. The owner has another husky but the cat always sleeps on the orange one.
Mr. Purple Cat Esq. What colour is the other one? Maybe its darker and therefore the brighter one will radiate more heat energy. You'll notice the cat is very dark making it a good absorber of infrared.
Oktay Nope, he's gray. It could be that the cat prefers the lower end of the spectrum, and doesn't want to deal with higher frequencies -- I could be wrong but doesn't radiative transfer become less efficient as frequency goes up?
yogarfield Cat heat goes down, dog heat goes up. This is pretty basic.