It is the Both texts tell the reader of the uncertainly, but Spiegelman shows it with images as well.
It can be a persons facial expression or the surface of an object that’s shown
<span>Metaphors allow the audience to form mental pictures that help them make connections while reading the speech.</span>
Basically, the fox tricked the bird into dropping the meat. The crow felt the need to prove itself to the fox, therefore losing what it had already achieved. I hope that helps you understand!