It's because of a basic principle: The Second Law of Feline Thermodynamics, which says that heat energy transfers from one cat to another. So, to stay warm, just find another cat and a cozy place to snuggle:
That's Twink in the front and Rocket in the back, but whose tail is it that's hanging out?
That's Twink in the front and Rocket in the back, but whose tail is it that's hanging out?