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A house-trained dog or cat that begins urinating indoors may not be acting out. They often suffer from urinary tract infections (UTIs), bladder stones, diabetes, or age-related cognitive decline.

Hormones and neurotransmitters are the chemical messengers of behavior. Hypothyroidism in dogs, for example, is famously linked to "rage syndrome" and uncharacteristic aggression. Cushing’s disease (hyperadrenocorticism) leads to panting, restlessness, and night-time waking—behaviors easily mistaken for anxiety. Similarly, seizures affecting the temporal lobe can produce "fly-biting" (snapping at invisible objects), sudden fear, or unprovoked aggression without any convulsive motor activity. A house-trained dog or cat that begins urinating

New studies explore the gut-brain axis, proving that specific diets and probiotics can alter gut flora to help reduce anxiety and aggression. Hypothyroidism in dogs, for example, is famously linked

For decades, the fields of animal behavior and veterinary science existed in relative isolation. On one side of the clinic wall, veterinarians focused on pathogens, broken bones, and biochemical imbalances. On the other side, ethologists and behaviorists studied body language, social hierarchies, and learning theory. Today, that wall is rapidly dissolving. New studies explore the gut-brain axis, proving that

Another area of progress is in the development of novel behavioral assessment tools and techniques. Advances in technology, such as computer vision and machine learning, have enabled researchers to analyze animal behavior in unprecedented detail. For instance, a study on the behavioral patterns of cattle used computer vision to track and analyze their movement and social interaction.

A sudden onset of irritability or aggression in an otherwise gentle dog is a classic indicator of localized or systemic pain. Conditions such as osteoarthritis, dental disease, or spinal discomfort frequently manifest as snapping when touched or resource guarding a comfortable resting spot. Lethargy and Withdrawal