K-Series

The K-Series Xenomorphs were captured and bred by human scientists hoping to use them as bio-weapons.

They are also known as Yellow Xenomorphs, because of the color of their exoskeleton.

History
The K-Series eventually escaped from the human lab, and used the humans as hosts. They constructed their hive within the lab.

Their species was destroyed by the "regular" black Xenomorphs, who did not tolerate any genetic changes. This is somewhat ironic, since every hive known to exist has been genetically different in some way.

Seen In

 * Aliens Versus Predator: Extinction
 * It is believed that the K-Series was seen in Alien Resurrection.

Other Strains

 * Acid Alien
 * Arachnid Alien
 * Arachnoid
 * Bodyburster
 * Bull Alien
 * Carrier
 * Chrysalis
 * Commander Alien
 * Defender
 * Empress
 * Flying Alien
 * Flying Queen
 * Gorilla Alien
 * Infectoid
 * Jock-Alien
 * Killer Crab Alien
 * King Alien
 * Leech Alien
 * Mantis Alien
 * Night Cougar Alien
 * Panther Alien
 * Praetorian
 * Predalien
 * Queen Facehugger
 * Queen Mother
 * Ravager Xenomorph
 * Razor Claws
 * Rhino Alien
 * Rogue Alien
 * Runner
 * Scorpion Alien
 * Smasher
 * Snake Alien
 * Super-Evolution Alien
 * Swarm Alien
 * Swimmer
 * White Hybrid
 * Wild Boar Alien
 * Xenoborg