The animal known for howling at the moon is the wolf. Wolves are social animals that typically live and hunt in packs, and their howling serves several purposes such as communication and strengthening social bonds. The phrase "howling at the moon" is often associated with wolves because their vocalizations are most noticeable at night, creating a striking image against the lunar backdrop. Howling can help wolves locate each other, announce their territory, or coordinate group activities. While it's a popular myth that wolves howl specifically at the moon, they do so for various functional reasons rather than as a direct response to the moon itself.