Only if the area were they are is cold. Cold-blooded means that they can't control their own body temperature so they usually rely on the sunshine for warmth and this is why they live in warm...
Warm-blooded animals keep a constant body temperature. This means they can be active at night, and up first on a cold morning. It also means they need a lot more food. Warm-bloods tend to be more...
Warm-blooded creatures, like mammals and birds, try to keep the inside of their bodies at a constant temperature. Cold-blooded creatures take on the temperature of their surroundings. They are hot...