The reason could be to draw attention, create curiosity, or perhaps it's part of a symbolic or metaphorical representation in the cartoon. It's hard to say for sure without more context.
This could potentially be a form of inappropriate or odd imagery. Maybe it's used for shock value or to create controversy, but it's not a common or positive thing to depict.
I have no idea. It could be some kind of strange artistic expression or a humorous concept gone wild.
The cartoon baby dog with three legs might look cute but a bit unbalanced. Maybe it has a big head and floppy ears, and it tries to move around with its three legs.
It could be a creative and unique concept used to tell a specific story or convey a particular message.
Whether or not the legs sister looked good was a subjective question, because different people had different definition and aesthetic views of beauty. In the search results, some people thought that Sister Leg's legs were beautiful, while others thought that Sister Leg's legs were not. As there was no specific description or photo provided, it was impossible to make an accurate evaluation of Sister Leg's appearance. Therefore, I am unable to give a definite answer to this question.
Maybe the bird is curious about the baby or finds it cute.
Maybe it saw something interesting on that side.
Running leg cartoon material can be found on Qianku website, providing 89 leg cartoon materials for designers to use.
The appeal might lie in the contrast. Babies are often associated with innocence and softness, while frogs have a more distinct look. This mix creates an interesting and eye-catching image.
Perhaps the cartoon is trying to show that the legs are unable to kick due to a lack of strength or motivation. It could also be a part of a comical or absurd scene where normal physical actions don't follow the usual rules.