What type of eye behavior may indicate that a dog is about to display aggression?

A direct stare and whale eye both signal potential aggression in dogs, making them significant indicators for canine behavior.

When a dog fixes its gaze directly on a person or another animal without breaking eye contact, it exhibits a direct stare. This behavior can signify a challenge or threat perception, as the dog may be preparing to assert dominance or defend itself, which could lead to aggressive actions.

On the other hand, whale eye is characterized by the dog showing the whites of its eyes. This occurs when the dog turns its head or body away while keeping its eyes directed toward the perceived threat. This behavior indicates anxiety or discomfort and serves as a warning sign that the dog might become defensive or aggressive if it feels cornered or threatened.

Recognizing these two behaviors is crucial for dog handlers, as they can provide early warnings of a possible aggressive response, allowing for intervention and safety measures. Understanding these signals helps in fostering a safer environment when interacting with dogs, especially those that may be anxious or reactive.