Yungoos

Yungoos appeared in 2016 video game called Pokémon Sun & Moon. Yungoos is a Loitering Pokémon. Yungoos is always on the move during the day, looking for foodand it's not too picky about what it bites with its sharp teeth. When night comes, it immediately falls asleep no matter where it happens to be.

A diurnal creature, Yungoos was introduced to Alola to deal with the invasive Rattata. However, as they hunted during the day the Rattata became nocturnal to avoid the new daytime predator.

Yungoos is a long-bodied mongoose-like Pokemon with yellow stripes on its brown coat, a patch of fur on its head resembling a toupee, and a mouth filled with large pointed teeth. It is clearly a mongoose due to the Pokedex entries that mention that Yungoos was introduced to control wild rodents on Alola, similar to mongeese that were introduced to Hawaii to deal with rat problems, but ended up killing native birds.