Final answer:
To warm a chilled puppy, provide a warm environment, use blankets, and offer a warm water bottle wrapped in a towel, as puppies cannot effectively generate their own heat or rely on fat and fur for insulation.
Step-by-step explanation:
The best way to warm a chilled puppy is to provide a warm environment and gentle warmth. Avoid waiting to see if its body temperature drops further, as this could be dangerous for the puppy. Instead, warm the puppy gradually by placing it in a warm room, using blankets, and offering a warm (not hot) water bottle wrapped in a towel for the puppy to snuggle against. Unlike mature dogs, puppies are less capable of increasing muscle activity to generate heat and do not yet have enough fur or fat to provide adequate insulation, making them more vulnerable to the cold.