Understanding grief in companion animals after the loss of a bonded companion and evidence-based approaches to supporting bereaved pets.
Companion animal grief is a real welfare concern supported by behavioral science. Animals form deep social bonds, and the loss of a bonded companion disrupts neurochemical equilibrium in ways that parallel human bereavement. Supporting a grieving pet requires patience, consistent routine, increased gentle social contact, and careful monitoring for signs of depression or anxiety that may warrant veterinary support. The decision about if and when to introduce a new companion should be guided by the surviving animal behavioral recovery, not human readiness, to ensure positive social outcomes.