Here's why:
* Hormonal changes: Pregnancy hormones can cause fatigue in gerbils, just like they do in humans.
* Weight gain: As the gerbil carries her pups, her weight increases, putting more stress on her body.
* Increased energy demands: Growing pups need a lot of energy, and the mother's body works hard to provide it, leading to tiredness.
Signs of a tired pregnant gerbil:
* Sleeping more: She may spend more time napping or resting.
* Less active: She may be less interested in playing or exploring.
* Eating more: To meet the increased energy demands, she may eat more than usual.
Important: If you notice any sudden or drastic changes in your gerbil's behavior, including excessive tiredness, it's best to contact your veterinarian. They can help determine if there's a medical reason behind the change.