Given the question: You are presented with the question "What generate heat mainly by keeping their metabolic rate high?" and the following answer choices: - elephants - fur seals - bacteria - alpacas - tree squirrels - animals - batteries - the Sun Now knowing that mammals generate heat mainly by keeping their metabolic rate high and gray Squirrel Management Tree squirrels are common Alabama mammals, choose the best answer.
The answer is:
tree squirrels