Dog
The domestic dog represents a masterpiece of selective breeding for compliance. Border Collies can learn over 1,000 distinct commands. The average dog masters basic obedience within weeks of consistent training. Dogs respond to verbal cues, hand signals, whistles, and the subtle shift in human posture that indicates disappointment. Their desire to please is so thoroughly encoded that they will perform tricks for nothing more than the brief approval of a creature they have decided to worship.
This trainability extends to remarkable specialisations: guide dogs navigate complex urban environments, detection dogs identify substances at parts per trillion, and therapy dogs provide measurable psychological benefits to hospital patients. The dog's neural plasticity, combined with its social motivation, creates an animal that genuinely wants to understand what humans want.
Duck
The duck approaches the concept of training with what researchers diplomatically describe as selective responsiveness. Ducks can, technically, learn their names. They can be conditioned to follow specific routes to feeding stations. They will, after sufficient repetition, demonstrate basic pattern recognition that their handlers optimistically interpret as obedience.
However, the duck's fundamental relationship with instruction differs categorically from the dog's. A duck does not seek approval. A duck seeks grain. The distinction becomes apparent when the grain supply is exhausted: a dog will continue performing in hope of eventual reward, whilst a duck will waddle away with the dignified indifference of a creature that never particularly cared whether its behaviour pleased you. Studies indicate duck compliance rates of approximately 23 percent, and researchers suspect even this figure reflects coincidental alignment of duck desires with human instructions.
VERDICT
The dog learns because it wishes to please. The duck learns because it has temporarily concluded that compliance serves its interests. This represents an unbridgeable philosophical divide.