Os nad ydych chi'n gwybod hanes yr anifail, ni allwch fod yn sicr ei fod wedi cael gofal neu a yw wedi arfer â bod yng nghwmni pobl. Gallai hyn arwain at broblemau ymddygiad yn y dyfodol a biliau milfeddygol drud.
If you do not know the history of an animal, you have no assurance it has been taken care of or has been properly socialised. This could lead to future behavioural problems and expensive veterinary costs.