Is a BULLFROG a cold blooded ?

Bullfrogs are cold-blooded, like all amphibians. That doesn't necessarily mean their blood is cold, though - cold-blooded animals may actually have a higher body temperature than warm-blooded ones under certain cirstances. The terms 'cold-blooded' and 'warm-blooded' are not strictly accurate - ectothermic and endothermic are better terms to use. Whilst endothermic (warm-blooded) animals, such as humans, can maintain body temperature internally, ectothermic (cold-blooded) ones, such as frogs, must rely on the environment to regulate their body temperature. If they are too cold, they must bask in the sun to warm up, and if they get too hot, they must move into the shade or into water to cool down.