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
Inverted question and exclamation marks common marks (?, !) used in most other languages. Unlike the ending marks, which are printed along the baseline of a sentence, the inverted marks (¿ and ¡) descend below the line. Inverted marks were originally recommended by the "Real Academia Española" (Royal Spanish Academy) in 1754, and adopted gradually over the next century. On computers, inverted marks are supported by various standards, including ISO-8859-1, Unicode, and HTML. They can be entered directly on keyboards designed for Spanish-speaking countries, or via alternative methods on other keyboards. The inverted question mark (¿) is a punctuation mark written before the first letter