A banana peel is the outer skin of a banana, which is a popular tropical fruit. The peel is typically yellow when ripe, but it can also be green or brown depending on the banana's ripeness. It is composed of three layers: the outer skin, the middle layer, and the inner layer, which protects the fruit inside. Banana peels are often discarded after eating the fruit, but they are biodegradable and can be composted. In addition to being a waste product, banana peels have various uses. They can be used in gardening as a natural fertilizer due to their high potassium content. Some people also use banana peels in cooking, as they are edible and can be incorporated into recipes. Additionally, banana peels are sometimes associated with comedic slips in popular culture, often seen in cartoons and movies featuring characters like Mickey Mouse or Tom and Jerry.