Why is "the origin of the robin" considered a creation myth?

“The Origin of the Robin” is considered to be a creation myth because it explains how this creature came to be. We can see how the robin was created by this childish boy in the story who was angry with his father and thus turned himself into a robin. Creation myths try to explain the birth of a creature or some other event, and they are mythological in nature, meaning that people invented these stories. Take many creation myths all over the world in which they try to explain the origin of man – many stories say that men were created from mud, sculpted into the form which we take today.

the function of the noun clause in this sentence would be “direct object” just took the test and got this correct. : )