Why can bats live without food or water for about 3 days?

Bats can survive without food or water for about three days due to their ability to enter a state of torpor, a temporary hibernation-like condition that reduces their metabolic rate and conserves energy. During this period, their body functions slow down, allowing them to utilize stored fat and moisture from their body tissues. Additionally, some species can extract small amounts of moisture from their food when they do eat, helping them endure longer periods without direct water intake. This adaptation is crucial for surviving in environments where food and water may be scarce.