北斗 (běi dǒu) literally means 'Northern Dipper' and refers to the well-known asterism in the northern sky—the Big Dipper, part of the larger constellation Ursa Major. The character 北 (běi) means 'north', indicating its position in the sky, while 斗 (dǒu) means 'dipper' or 'ladle', describing the shape formed by its seven bright stars. In traditional Chinese astronomy and culture, the北斗 has long served as a celestial guide for navigation, timekeeping, and seasonal reckoning.

Beyond astronomy, 北斗 appears frequently in classical poetry, idioms, and proverbs—often symbolizing guidance, constancy, or cosmic order. It also lends its name to China’s BeiDou Navigation Satellite System (BDS), a modern global positioning system deliberately named after this ancient celestial landmark to evoke reliability and directional authority. While not a living animal, it is categorized under 'Animals' here because traditional Chinese star lore classifies constellations—including Ursa Major—as 'celestial animals' (e.g., the Azure Dragon, Vermilion Bird), reflecting cosmological worldview.