Providing an on-line computer database for assisting in the locating of lost pets

Wearable activity trackers; sensors for veterinary use for measuring and tracking biometric measurements; electronic devices for measuring and tracking biometric measurements embedded in a pet vest, pet harness or pet collar; implantable activity trackers; implantable sensors for veterinary use for measuring and tracking biometric measurements; implantable electronic devices for measuring and tracking biometric measurements; downloadable computer software for monitoring, tracking, analyzing, ...