Pikachu is a short， chubby， ground-dwelling rodent-like Pokémon notable for its Electric abilities. Pikachu has short， yellow fur with brown stripes on the back， red cheeks that can produce small jolts of electricity， a mouth that looks like a sideways three， black-tipped ears， along with an unusually shaped tail， resembling a lightning bolt. Besides its evolution and pre-evolution， it may be related to Plusle， Minun， Pachirisu， and Emolga due to notable physical similarities. Pikachu is known to have acute senses of hearing， thanks to its large ears. Most domestic Pikachu are able to understand and interpret human speech at levels far surpassing those of any pet dog.