2. Pinning: If one gerbil is pinning the other down on the ground and biting it, this is a clear sign of aggression and dominance.
3. Squealing or Screaming: If you hear your gerbils squealing or screaming, it may indicate that one of them is being hurt.
4. Fur Loss: If you notice one of your gerbils is suddenly losing fur or has patches of missing fur, it could be due to excessive grooming by the dominant gerbil.
5. Weight loss: The submissive gerbil may stop eating or not be able to eat because the bigger gerbil is being aggressive at mealtime.
6. Injuries: If you see visible injuries or wounds on one gerbil, it's likely due to being attacked by the other gerbil.