Animals experience grief when they lose companions; understanding and supporting grieving pets through behavioral change and appropriate care is an important welfare consideration.
Animal grief is real and scientifically documented. Dogs that lose canine companions show measurably altered cortisol, behavior, and appetite for weeks. Cats may seek their missing companion, vocalize more, or withdraw. The appropriate response involves increased owner attentiveness and positive interaction, maintenance of routine (familiar schedules reduce anxiety), and patience — recovery timelines vary from weeks to months. A common mistake is immediate acquisition of a new pet as a replacement — this can overwhelm a grieving animal that needs time to adjust. When a new companion is introduced, gradual introduction protocols should be used. Some animals benefit from pheromone products and environmental stability during the adjustment period.