The Pomo, an indigenous group of people who live in the northwestern United States, tell a story of a bear who started a fight with the Sun and took a bite out of it. In fact, the Pomo name for a solar eclipse is Sun got bit by a bear.
After taking a bite of the Sun and resolving their conflict, the bear, as the story goes, went on to meet the Moon and take a bite out of the Moon as well, causing a lunar eclipse. This story may have been their way of explaining why a solar eclipse happens about around 2 weeks before or after a lunar eclipse.