Wing bones are the skeletal structures that support the wings of birds and some other flying animals. In birds, these bones include the humerus, radius, and ulna, which are similar to the arm bones in humans. The wing bones are lightweight yet strong, allowing for efficient flight. In addition to birds, wing bones can also be found in bats and insects, though their structure varies. In bats, the wing bones are elongated fingers covered by a membrane, while insects have a different arrangement of veins in their wings. These adaptations help each species achieve flight in their unique environments.