im seriously wondering why the doctor hasnt gotten a non human companion in the actual doctor who canon when he have been given constant proof that it would work, ten with arthur, eleven and tricy, and 12 with the unreasonably large t-rex (seriously that thing was godzilla sized not t-rex sized, even female t-rex dont get that big, the biggest they get is probably a 3-4 story building, not as tall as bloody big ben) why not have a long lasting non human companion?

http://en.wikipedia.org/wiki/K-9_%28Doctor_Who%29

http://en.wikipedia.org/wiki/Frobisher_%28Doctor_Who%29

http://en.wikipedia.org/wiki/Nyssa_%28Doctor_Who%29

http://en.wikipedia.org/wiki/Romana_%28Doctor_Who%29

http://en.wikipedia.org/wiki/Adric

http://en.wikipedia.org/wiki/Vislor_Turlough

http://en.wikipedia.org/wiki/Kamelion

http://en.wikipedia.org/wiki/Jack_Harkness

http://en.wikipedia.org/wiki/C%27rizz

*eyebrow quirk*