The animal commonly used as a symbol of wisdom is the owl. Owls have long been associated with wisdom and knowledge in various cultures and mythologies. In ancient Greece, the owl was linked to Athena, the goddess of wisdom, and became her emblem. This association may stem from their nocturnal behavior and unique ability to see in low light conditions, giving them an air of mystery. The owl's calm demeanor and perceptive nature further contribute to its reputation as a wise creature, making it a popular symbol in literature, art, and folklore.