- Raised fur, especially on the back or tail, is a common sign of aggression.
- Staring directly at another gerbil with unblinking eyes can be a threat display.
- Ears held flat against the head indicate hostility.
Vocalizations:
- Aggressive gerbils may make high-pitched squeals or chattering sounds.
- Growling or hissing is a more serious sign of aggression and a warning that a fight is imminent.
Physical Actions:
- Tail flicking can be a warning sign, especially if accompanied by other aggressive behaviors.
- Biting is the most overt form of aggression and can cause serious injury.
- Charging at another gerbil is a clear act of aggression.
Additional Signs:
- Avoidance: A gerbil may actively avoid another gerbil or try to escape its presence.
- Resource guarding: Gerbils may become aggressive if they feel their food, water, or other resources are threatened.
- Dominance: Some gerbils may exhibit aggressive behaviors to establish dominance over others in the group.
- Stress: High levels of stress can lead to increased aggression in gerbils.