No, they are more fit! They have to be. They are the result of intelligent design!
Uh, as opposed to ... animals?
Ok. Let's take squirrels. Are flying squirrels less fit? What about the time when they just started to develop their skin flaps? Were they less fit than squirrels that didn't have the flaps yet?
btw, are you taking back your claim that I contradicted myself? See 645.