why are reindeer so small

Reindeer are small in size because they are designed for speed and agility, rather than brute strength. Their size allows them to maneuver quickly and easily through narrow spaces, such as chimneys, and to avoid obstacles that might hinder a larger animal. Additionally, their small size makes it easier for them to fly and maintain balance during long journeys across the sky. Finally, reindeer are able to store fat reserves in their bodies that provide energy during times of food scarcity, allowing them to survive harsh winter conditions.