Why is this the answer?

The answer is gloves because this clever riddle uses words to trick you into thinking about a living creature when it is actually describing something we wear on our hands. It is a fantastic word puzzle! Let us look closely at the first line: "They have not flesh, nor feathers, nor scales, nor bone." This tells us that the object is not a living animal. It is not a person, a bird, or a reptile. Gloves are usually made of cloth, yarn, or leather, which means they do not have bones or flesh inside them. This is a big clue that helps us understand the object is man-made. The second part of the riddle gives us the biggest hint: "Yet they have fingers and thumbs of their own." This is the part that plays a fun trick on your mind. You know that you have five fingers and a thumb on each of your hands. But a glove is made to fit right over your hand, and to do that, it has five separate pockets or sleeves that are made exactly for your fingers. It also has one special part for your thumb. When you look at a glove, it is shaped just like a hand. You could say those empty pockets are the glove's own "fingers and thumbs." Gloves are a special kind of clothing. They protect our real fingers and thumbs, keeping them warm in the winter or safe while we work. They cover your hand entirely. The riddle is trying to make you imagine a creature, but the answer is a simple object that is shaped like a part of your body. That is why gloves are the perfect answer to this amazing riddle. They fit all the clever clues in a wonderful and surprising way.