Squirtle is a short, tailed bipedal Pokémon. However, it has also been shown to be able to walk on all fours. They resemble a light blue turtle with their most notable feature being the hard shell on their back. This shell forms and hardens on its back after birth. They could perhaps be distantly related to some other turtle-like Pokémon, but Squirtle seems to only be closely related to their evolutions. Three digits are located on each hand and foot.
Squirtle's shell is an extremely helpful defensive tool. They can withdraw into the shell to block physical attacks. Their smooth, hard shell and head also aid them in other ways, such as minimizing their resistance in water to increase their swimming speed, and allowing them to launch attacks like Rapid Spin and Skull Bash.
Squirtle is a natural-born swimmer. However, due to their size, it's easier for them to transport something small (like a Pikachu) than to carry their Trainer.
Their jaws may not look like much, but they are strong enough that a Squirtle can learn to use a Bite attack.
Squirtle's tail seems to resemble that of a squirrel's tail, which allows them to use moves such as Tail Whip and Aqua Tail.
Squirtle can spray water from its mouth. At first, it may only be able to spray foam and bubbles, but with time it can learn to spray water jets like Water Gun and Hydro Pump. If it withdraws, it can still spray water out the holes in its shell.
Squirtle are domestic Pokémon, raised to be distributed as starter Pokémon by Professor Oak. As such, they are regarded as well-behaved Pokémon. They are not regarded as the easiest or hardest for a Trainer to raise, since they are not as mild-mannered and easy as Bulbasaur but they are not as rash and hard as Charmander.
They are very loyal to their groups, but they get along better with other Pokémon than with humans, and can sometimes have a bit of an attitude towards humans. It is far from uncommon for them to start or join larger groups.
Squirtle are scarce in the wild. Sometimes they can be found living on secluded islands in the ocean or swimming in the rivers of deep canyons, but their chief habitat seems to be small freshwater ponds and lakes. Overall they are found far more often in urban settings, usually in the ownership of Trainers. Kanto is the most likely place to find them.
Their diet is the usual omnivorous diet of a Pokémon. In the wild it may feed on water plants or aquatic invertebrates.
This Pokémon was unavailable prior to Generation I.