Hybrid/Legends

A hybrid was an individual with parentage from more than one sentient species.

Biology
The Human species was able to interbreed with the Coynite, Echani, Ferroan, Hamadryas, Kiffar, Miraluka, Nagai, and Theelin. When Humans bred with the Kalai, the resulting offspring were known as Lethagoe and with the Zabrak the Dathomirians.

On the other hand, Humans were unable to interbreed with the Anzati, Qiraash, Rattataki, or Umbaran species without genetic manipulation. Humans were only able to breed with the Sith through the use of Sith alchemy. Humans were also incompatible with the Bothan, and Tusken Raiders species.

Other compatible hybrid combinations included Borneck with Etti, and Arkanian with Sephi. There was a half-Bothan population on the planet Farfalla. Other incompatible combinations included Gotal and H'nemthe.

Behind the scenes
According to Order 66: A Republic Commando Novel and Imperial Commando: 501st, and also The X-Wings series of books by Micheal Stackpole and Aaron Allston, Humans and Twi'leks were genetically incompatible. However, Star Wars: The Clone Wars Character Encyclopedia directly contradicts this, indicating that such pairings could indeed produce hybrid offspring.

Appearances

 * The Journal of Master Gnost-Dural
 * Star Wars Episode I: The Phantom Menace
 * Coruscant Nights II: Street of Shadows
 * Star Wars Episode III: Revenge of the Sith
 * The Hutt Gambit
 * Star Wars: The Force Unleashed II
 * Rebel Dawn
 * Nightlily: The Lovers' Tale
 * Star Wars Episode VI: Return of the Jedi
 * Dark Empire
 * Dark Empire II
 * Bloodlines
 * Millennium Falcon
 * The Return of Tag & Bink: Special Edition
 * Millennium Falcon
 * The Return of Tag & Bink: Special Edition