Which Pokémon studies the environment alongside Ditto in Pokémon Pokopia?

Professor Tangrowth studies the environment alongside Ditto in Pokémon Pokopia. This Tangrowth has taken on the role of investigating the damaged world and its abandoned habitats.

After Ditto finds itself in the deserted landscape, it meets Tangrowth, who is known as Professor Tangrowth. The character has made it a personal mission to understand why humans and Pokémon disappeared and how the environment can be restored.

Professor Tangrowth is not one of the human Pokémon professors from the main series, such as Professor Oak or Professor Rowan. The name is a character title built around Tangrowth, a Grass-type Pokémon introduced in Generation IV. Tangrowth therefore serves as both a story companion and an important guide to Pokopia’s mystery.