털 is the Korean word for "hair" or "fur." It refers to the fine, thread-like structures that grow from the skin of humans and animals. In humans, 털 can be found on various parts of the body, including the head, arms, and legs. In animals, 털 serves as insulation and protection against the environment. The growth and texture of 털 can vary widely among different species. For example, 고양이 (cats) have soft, dense 털 that helps keep them warm, while 개 (dogs) may have a range of fur types, from short and smooth to long and fluffy.