Water-type Pokémon are a category of creatures in the Pokémon franchise that primarily use water-based moves in battles. They are known for their ability to adapt to various environments, often found in oceans, rivers, and lakes. Water-type Pokémon are typically strong against Fire-type and Rock-type Pokémon, but weak against Electric-type and Grass-type Pokémon. These Pokémon can evolve into more powerful forms, gaining new abilities and moves. Some popular examples include Squirtle, Gyarados, and Lapras. Water-type Pokémon are often characterized by their aquatic features, such as fins, gills, and the ability to swim efficiently.