Volvox aureus is a spherical green algae belonging to the genus Volvox, typically ranging from 100 to 600 micrometers in diameter. Its colony structure consists of numerous pear-shaped zooids, each equipped with two flagella for movement, arranged in a single-layered outer region around a gelatinous matrix. These zooids contain cup-shaped chloroplasts near their flagella base. Reproduction in Volvox aureus includes both asexual, where daughter colonies develop internally, and sexual processes involving specialized reproductive cells producing eggs and sperm. Found in freshwater habitats like ponds and lakes, Volvox aureus contributes to aquatic ecosystems through photosynthesis, serving as a food source for various organisms due to its size and motility facilitated by flagellar movement. Its colonial organization and reproductive strategies are pivotal in understanding evolutionary adaptations in green algae.