Ear tag ear is tagged. Australian sheep and goats are required to have visually readable ear tags printed with a Property Identification Code (PIC). They are complemented by movement documents supplied by consignors that are used for identification and tracking. Very small ear tags are available for laboratory animals such as mice and rats. They are usually sold with a device that pierces the animal's ear and installs the tag at the same time. Lab animals can also be identified by other methods such as ear punching or marking (also used for livestock; see below), implanted RFID tags (mice are too small
Ear candling candles do more harm than good. Their use should be discouraged." According to the US Food and Drug Administration (US FDA), ear candling is sometimes promoted with claims that the practice can "purify the blood" or "cure" cancer, but that Health Canada has determined the candles have no effect on the ear, and no health benefit; instead they create risk of injury, especially when used on children. In October 2007, US FDA issued an alert identifying ear candles (also known as ear cones or auricular candles) as "dangerous to health when used in the dosage or manner, or with the