What are the most different techniques between Autodesk Maya and Autodesk MotionBuilder?

no the MB is concentrating on Animating only

but Maya has all features you mentioned above but I mean what the deffirents between two programs

(F-curve and Graph Editor) what the essential difference

First of all bothe software are very different from each other.. as we know maya is a complete pacakage for modelig, unwraping, texturing ,3d paint , lighting, rigging, animation, particles, hair and fur etc.. where as Motion builder is mostly consider for animation  and specially in gamaing..