Which Pokémon character studies the environment in Pokémon Pokopia?

Professor Tangrowth studies the environment in Pokémon Pokopia.

Professor Tangrowth is a Tangrowth who has appointed himself to investigate the damaged world. When Ditto begins exploring the abandoned landscape, Professor Tangrowth becomes an important companion and helps examine the mystery behind the disappearance of humans and Pokémon.

The character uses the familiar Pokémon professor naming pattern, but Professor Tangrowth is not one of the human researchers from the main series. Professor Oak, Professor Elm, and Professor Sycamore belong to other Pokémon stories and are not the environmental investigator in Pokopia.

Tangrowth is an evolved Grass-type Pokémon introduced in Generation IV. Pokopia gives this Pokémon a distinctive scholarly role, combining its species identity with the title “Professor” and the game’s ecological restoration theme.