Les Shadoks

Les Shadoks is an animated television series created by French cartoonist Jacques Rouxel (26 February 1931 - 25 April 2004)[1] which caused a sensation in France when it was first broadcast in 1968-1974.
The Shadoks were bird-like in appearance (in the tradition[citation needed] of cartoon birds they had beaks with teeth), were characterised by ruthlessness and stupidity and inhabited a two dimensional planet.
Another set of creatures in the Shadok canon are the Gibis, who are the opposite to the Shadoks in that they are intelligent but vulnerable and also inhabit a two-dimensional planet.