Chimera

Chimeras are creatures that have been combined with others to create a single entity through alchemy. Chimeras are mainly created through combining both an animal and a human, and they are commonly used for jobs requiring protection and fighting, such as guards &amp; soldiers.

"Successful" chimeras tend to appear the exact same way as when they were still unaltered humans prior to being converted, but can apparently morph manifest more animal-like aspects if they so wish, and inherit abilities similar to the creature they are combined with (such as heightened senses, strength, speed, etc.)

"Unsuccessful" chimeras, however, suffer large amounts of pain and can barely grasp human languages. They also tend to mostly appear like their animal counterpart, yet still keep characteristics and memories of their human form (for example, Nina Tucker takes the shape more like Alexander than herself, but can still recall Edward and Alphonse).

List of Semi-Human Chimeras by Faction

 * Mr. Shou Tucker's Chimeras (all deceased)
 * Mrs. Tucker (Unknown Creature)
 * Nina Tucker (Dog)
 * Greed's Chimeras (all deceased)
 * Bido (Unknown Lizard)
 * Martel (Snake)
 * Roa (Ox)
 * Dolcetto (Dog)
 * Ulchi (Crocodile)
 * Mr. Kimbly's Chimeras (now aligned with Ed)
 * Darius (Gorilla)
 * Heinkel(Lion)
 * Jelso(Toad-like creature)
 * Zanpano(Boar-like creature)

In the Anime
The chimeras in the anime vary from those in the Manga; whilst Nina, Mrs. Tucker and Greed's chimeras still appear (and die) in the anime,

Shou Tucker himself becomes a chimera, and Kimbly only briefly affiliates with Greed's chimeras (as opposed to his own).