human
What is the difference between a "funnel cloud" and a "sundog"?
assistant
The primary difference between a funnel cloud and a sundog is that a funnel cloud is typically formed by rotating air currents, while a sundog is created when sunlight passes through a layer of high-altitude cirrus clouds. Additionally, a funnel cloud can be much larger in size than a sundog, which can range from several hundred feet to over a mile wide.