All Species Wiki
General Information
Universe Pokémon
Aliases Koduck
Pokémon #054
Classification Psyanas aquatilium
Species Type Monotreme
Water-type Pokémon
Homeworld Pokémon world
Environment Various
Intelligence Non-Sapient
Biological Information
Reproduction Oviparous
Locomotion Bipedal
Lineage Information
Descendant(s) Golduck
Related Species Platypus
Cultural Information
Alignment True Neutral
Sociocultral characteristics
Scientific Taxonomy
Planet Pokémon world
Domain Eukaryota
Kingdom Animalia
Phylum Chordata
Subphylum Vertebrata
Class Mammalia
Order Monotremata
Family Ornithorhynchidae
Genus Psyanas
Species P. aquatilium
Other Information
Status Least Concern

The Psyduck (Psyanas aquatilium), also known as "Koduck", is a fictional yellow duck-like pokémon that originated from the Pokémon video game franchise.


Despite its name, it is actually a monotreme, and a relative of the platypus. This water-type evolves into Golduck.


Scientists of the Pokémon world classed this creature under the "Psyanas" genus under the assumption that is was a duck. However, they later discovered this species to be a monotreme, distantly related to the platypus. Although after multiple proposals to change it, they eventually decided to leave the genus name as is.