What can a mammal produce by shivering?
Options:
- (A) energy
- (B) motion
- (C) food
- (D) warmth
- (E) cells
- (F) fur
- (G) light
- (H) matter Let's solve this problem gradually.

user
Mammals can also generate little bursts of heat by shivering. Basically, heat is energy. Mammals can generate little bursts of energy by shivering. So the final answer is (A).
assistant