When a companion animal or human family member dies, many pets change. Common signs include reduced appetite, searching, vocalizing, clinginess, or withdrawal — patterns that mirror grief in other social mammals.
Studies of bereaved dogs and cats document measurable shifts in sleep, eating, and activity that can last weeks. The response is strongest when the lost individual was a bonded companion.
This makes sense biologically: highly social species that form attachments also experience distress when those bonds break. Grief is not uniquely human.
Support a grieving pet with routine, extra attention, and patience. If changes persist beyond a few weeks or cause weight loss, a veterinary check rules out physical illness.
