Animals that are primarily active during the day are referred to as diurnal animals. This term distinguishes these species from nocturnal animals that are active during the night. Diurnal animals have adapted to take advantage of daylight for foraging, hunting, and social interactions. Their vision and behaviors are tuned to daytime conditions, often resulting in vibrant colors or patterns that are effective in the light. Examples of diurnal creatures include many birds, monkeys, and most species of reptiles. Their activity patterns also influence their ecological roles and interactions with other species in their habitats.