A Generation I Pokémon, Pikachu can be found very rarely in the wild. It evolves into Raichu.

Whenever Pikachu comes across something new, it blasts it with a jolt of electricity. If you come across a blackened berry, it's evidence that this Pokémon mistook the intensity of its charge.
Pikachu — Summary

Type
Electric

Evolves from...
Pichu: 25 Pikachu Candy required.

Evolves into...
Raichu: 50 Pikachu Candy required.

Shiny Form
In Pokémon GO, certain Pokémon are available in shiny form.
For more information on Shiny Pokémon, you can consult our list.

Height
0.4 m

Weight
6.0 kg