Reptiles
Reptiles as a group are also cold blooded like amphibians. You may also hear the terms poikilothermic or ectothermic. These terms are usually used as synonyms for cold blooded. All of these terms mean that these animals can not regulate their own body temperature like birds and mammals. This means that if it's 85° where the reptile is, then that reptile will have a body temperature of 85° as well.
Most reptiles lay eggs, but unlike amphibians, reptile eggs are laid on land and reptiles have lungs from the very beginning. Reptiles are also covered with scales on their entire body.
Learn more about different types of reptiles: