The term "older pet" refers to animals that are past their prime or have reached a certain age. This can vary depending on the species, but generally speaking, an older pet is one that has lived beyond its expected lifespan or is no longer as active and playful as it once was due to aging. As pets grow older, they may experience health issues such as arthritis, loss of vision or hearing, decreased appetite, and other age-related conditions. It's important for pet owners to be aware of these changes and adjust their care routine accordingly to ensure the best quality of life for their aging companions.