In 'The story about a beautiful maiden, and how the hartebeest got the marks under its eyes like teardrops' we discover just how much of a cheat the chameleon is.
In the Nigerian tale of 'The Story of The Boy and The Old Woman and How the Wasp Got His Small Waist' we learn not why the wasp is, but rather why he's shaped the way he is. And the reason, according to the Hausa, is quite a tale.