Eevee

Eevee (Japanese: イーブイ Eievui) is a unique -type Pokémon.

Appearance
Eevee is a mammalian creature with brown fur, a bushy tail that has a cream-colored tip, and a furry collar that is also cream-colored. Eevee has brown eyes, big ears, and pink paw pads. Its design appears to be based specifically on the Fennec fox, a small fox like animal that are found in desert like areas. It and its evolutions also has traits of raccoons, foxes, dogs, and cats. Eevee is said to have an irregularly shaped genetic structure, enabling it to evolve into multiple Pokémon. Eevee are quite rare, but are able to live almost anywhere, as they may evolve to suit their surroundings. Its possible moves are: Tackle, Tail Whip, Helping Hand, Sand-Attack, Growl, Quick Attack, Bite, Baton Pass, Take Down, Last Resort, and Trump Card.

Special Abilities
Eevee can have either the ability Run Away or Adaptability. Run Away is an ability that will allow the user to run from any wild Pokémon battle, negating the effects of moves that prevent running away like mean look and block. Adaptability increases the users STAB from x1.5 to x2.0. Eevee are Pokémon with unstable genetic codes. This gives them the ability to evolve into seven different evolutions triggered by the environment, time of day, or the usage of the evolutionary stones Water Stone, Thunderstone, and Fire Stone.

In the Anime
In the anime, Eevee first appeared in The Battling Eevee Brothers. A little boy named Mikey was hiding the Evolution Pokémon from his three older brothers because they wanted him to evolve it. However, when Mikey's Eevee single-handedly defeated Team Rocket, they were able to accept the fact that Mikey wanted to keep his Eevee just the way it is. Ash's longtime rival Gary Oak uses an Eevee of great quality that eventually evolves into Umbreon. May has an Eevee that hatched from an egg, which she used in Pokémon Contests all across the Kanto and Johto region. When May traveled to Sinnoh, she took it to Route 217 to evolve into a Glaceon. The Kimono Girls who first appeared in the Pokémon Gold and Silver games, also make an appearance with their Pokémon (all of which are evolutions of Eevee) in Trouble's Brewing. The youngest of the Kimono girls had an unevolved Eevee (the only of the sisters to have one), though it evolved into an Espeon later on in the episode "Espeon, Not Included".

Pokemon Adventures
In Pokémon Adventures, Red is in possession of an Eevee which had been experimented on by Team Rocket. As a result, it could transform back and forth from the three evolutions Vaporeon, Jolteon, and Flareon along with its base form, allowing it greater tactical ability in fighting other Pokémon. Eventually, it evolved into an Espeon, losing its special ability to interchange abilities.

Electric Tale of Pikachu
In the Electric Tale of Pikachu manga, the character Mikey (who appeared in the anime episode: "The Battling Eevee Brothers") makes an appearance with his own Eevee and within the chapter that he appears in, Mikey attempts to prove to his brothers that he doesn't need to evolve his Eevee to win battles.

Evolution
Eevee can evolve into one of seven forms. These forms are: Jolteon by use of a Thunderstone, Flareon by use of a Fire Stone, Vaporeon by use of a Water Stone, Espeon when leveled up with high friendship in the morning and afternoon, Umbreon when leveled up with high friendship during the night, Leafeon when leveled up in Eterna Forest and Glaceon when leveled up on Route 217.

Pokédex Entries
Is also a possible choice for the hero in Pokémon Mystery Dungeon Red, Pokémon Mystery Dungeon Blue, and Pokémon Mystery Dungeon Explorers of the Sky.

Trivia

 * So far, Eevee is one of ten Pokémon (the others being Snorunt, Burmy, Poliwhirl, Clamperl, Gloom, Slowpoke, Tyrogue, Wurmple and Kirlia) to have more than one evolution, one of two (the other being once again Tyrogue) to have three or more, and the only Pokémon that has 4 or more.
 * Eevee is a common Gift Pokémon. Eevee doll.jpeg
 * 'Eeveelutions' is a common fan term for Eevee's evolutions.
 * Eevee was the first Pokémon that could evolve during a certain time of day.
 * Its name is a palindrome, meaning its name is spelled the same backwards as it is forward. Only three other Pokémon share the same trait, namely Ho-Oh, Girafarig, and Alomomola.
 * Eevee is one of two Pokémon (Gloom is the other one) that can evolve into several other Pokémon using multiple element stones.
 * In the Pokémon Special manga, Red owned an Eevee that had undergone genetic mutation, due to Team Rocket's experiments, allowing it to evolve and devolve and evolve again. It is noted that it went from Jolteon to Flareon to Vaporeon, and then back to Eevee. This power was available through an ear device that causes harm to Eevee as it evolved or devolved. Eventually it trusted Red enough to evolve into an Espeon, losing the ability to devolve.
 * Eevee is given to the player in most of the Pokémon games.
 * Eevee has been featured as a starter Pokémon in two Pokémon games. The first was in Pokémon Yellow where the player's rival received an Eevee as his starter. The second was in Pokémon XD: Gale of Darkness where the player begins the game with an Eevee which he received at some point prior to the events of the game (though the specifics of how long the player's character has owned the Eevee and the circumstances under which he received it are not revealed). Also, in Pokémon Colosseum, the player begins the game with two starters which are both already evolved Eevees (namely the two evolved forms introduced in the Generation 2 games, Espeon and Umbreon).
 * Eevee's evolved states (for example, Espeon and Umbreon) can defeat one another. Umbreon can defeat Espeon, since Espeon is a Psychic-type, it wont hurt Umbreon if it uses a Psychic-type move.
 * Out of all of the Eeveelutions, Umbreon is the only one that isn't at a type disadvantage to another.
 * Espeon is weak against Umbreon; Flareon is weak against Vaporeon; Vaporeon is weak against Jolteon and Leafeon (although it's moves do normal damage on Jolteon); Leafeon is weak agaist Glaceon and Flareon (although it's moves to normal damage on Glaceon) and Glaceon is weak against Flareon (also, Glaceon's type is weak against Vaporeon and Jolteon's is weak against Leafeon).
 * Espeon is the only Eeveelution that doesn't have a type advantage against any of the others.
 * Umbreon is good against Espeon; Flareon is good against Glaceon and Leafeon; Vaporeon is good against Flareon; Jolteon is good against Vaporeon; Leafeon is good against Vaporeon and Glaceon is good against Leafeon.
 * Eevee and the Eeveelutions currently hold the record for the most amount of types in one evolutionary line with 8.
 * Eevee's form is based on one of a fennec fox.
 * Jolteon is the only eevee not to have a tail.