Given the question: Fact 1: Mammals can also generate little bursts of heat by shivering. Fact 2: Most mammals can be active even in cold weather because they are warm-blooded. Given the two facts above, answer the question "which can help warm-blooded animals stay active in cold?" with the following options: - shivering - four limbs - Animal fur - sleep - sweating - hibernation - cold blood - fur seals
The answer is:
shivering