### Instruction: Classify each of the following animals as ectothermic or endothermic: alligator, snake, frog, goat, human, gorilla
### Response: Alligator: Ectothermic
Snake: Ectothermic
Frog: Ectothermic
Goat: Endothermic
Human: Endothermic
Gorilla: Endothermic