Tails

Tails is a term that can refer to several distinct concepts across technology, fiction, and biology. In general usage, a tail is a rear appendage of many animals, but the capitalized form Tails is also used as a product name and as a character name in popular media.

In biology, a tail is a flexible posterior body part that can assist in locomotion, balance, communication, or defense. Tails vary widely in size and form among species, from prehensile tails in some mammals to counterbalance in arboreal reptiles. Evolution can reduce or eliminate tails when they no longer serve a function.

Miles "Tails" Prower is a fictional character in Sega's Sonic the Hedgehog franchise. Introduced in 1992, he is Sonic's best friend and sidekick, renowned for his mechanical aptitude and inventive skill. Tails is a two-tailed fox who can spin his tails to fly briefly and to propel himself through air.

Tails, short for The Amnesic Incognito Live System, is a privacy-focused Linux distribution designed to protect user anonymity. It operates as a live system from removable media and routes all network connections through the Tor network. Tails aims to leave no trace unless explicitly asked, and it includes privacy tools and encryption utilities with optional persistent storage.