Behavioral toxicity is the study of abnormal behavior caused by chemicals found in the environment or workplace. It examines the effects of toxicants like pharmaceuticals, heavy metals, solvents, pesticides, and air pollutants on behavior. Toxicants can influence behaviors like chasing, catching, handling, and swallowing prey. They may cause restlessness, rapid movement, breathing issues, and loss of balance in fish. Heavy metals in particular are linked to symptoms ranging from fatigue and depression to neurological deficits like tremors. Herbicides and endocrine disruptors can also negatively impact the nervous system and behaviors.