Oktay - 2015-02-14 This cat is in love. The owner has another husky but the cat always sleeps on the orange one.
Mr. Purple Cat Esq. - 2015-02-14 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 - 2015-02-14 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 - 2015-02-14 Cat heat goes down, dog heat goes up. This is pretty basic.