Larva is a South Korean animated comedy series that first aired in 2011, built around short, mostly wordless sketches with two larva characters, Red and Yellow, living underground in New York. Red is the hot-tempered, mischievous one, and his exaggerated reactions became popular clips on their own. As short-form video grew, fans in Brazil and Spanish-speaking communities shared his laugh under names like zoeira and risas, using it as a quick audio punchline. The short length and cartoon timing keep it useful for memes and edits today.