Pets can cope with grief in various ways, such as seeking comfort from their human companions, displaying changes in behavior like loss of appetite or increased clinginess, or even showing signs of distress like whining or howling. It's important for pet owners to provide extra love and support to their pets during times of grief and to maintain their routines as much as possible to help them feel secure. If a pet's grief seems to be prolonged or severe, it's advisable to consult with a veterinarian or animal behaviorist for further guidance.