People often think that living things are either plants or animals. But there are many other kinds of life. Some are tiny creatures such as bacteria. Others, called fungi, can look like plants, but grow by absorbing food instead of by using sunlight. Fungi spread by scattering spores, dust-like particles much simpler than seeds.
Forest are good places to find fungi, because many fungi feed on wood or on fallen leaves. Some, like the red-and-white fly agaric, are useful to trees because they help them to collect nutrients from the soil. Others, like the honey fungus, are much less welcome because they attack living wood.