Wanamingo

Wanamingos are strange mutant animals that live mostly underground. They are also often called aliens, due to being mistaken for extra-terrestrial beings. They were designed as FEV-tailored weapons for waging war on other countries and they escaped into the wastes.

They can live a long time, but they are dying out by 2241. They hatch from eggs laid by the queen, which is larger than the other wanamingos and grey in color. They aren't intelligent in the usual sense, but they do seem to have a hive-mind mentality.

The only known queen lived in the Wanamingo Mine in Redding, owned by Ascorti. All "aliens" living in that mine were killed by the Chosen One in 2242. Some other wanamingos/aliens could be found in the desert, and in the San Francisco tanker. The name "wanamingo" was originally only used locally in Redding, but eventually came to be used for the species as a whole elsewhere as well.

Tips
Beware of the wanamingos as they are fast, have a high damage resistance and hit multiple times. They have a weakness though, they retreat from battle if one of their legs gets crippled. Flamers will also become your best friend, as they possess almost no fire resistance and must get close to attack.

The grey wanamingo queen can lay eggs for the reproduction of the wanamingos. She can usually be found deep underground in her breeding room.

Appearances
Wanamingos appear in Fallout 2.

The Art of Fallout 3, an art book available with the Collector's Edition of the game, includes a new version of wanamingo mutated by radiation although no Wanamingos exist in the game itself.

Trivia

 * Wanamingos, heads especially, distantly resemble Xenomorphs, the main antagonists of the "Alien" franchise.