It might be because the creator wanted to evoke a sense of nostalgia or to stand out from the usual colorful cartoons. Black and white can make the tortoise seem more special and distinct.
The reason could be to focus on the form and shape of the tortoise without the distraction of colors. It can also give a more simplistic and elegant look.
The black and white nose in the cartoon might be to emphasize contrast or to give it a classic, timeless look. Sometimes, less color can have more impact.
The black and white cartoon tortoise usually has a simple yet distinct color pattern. It might have bold black outlines and white fillings, giving it a visually striking look.
Maybe it's for a specific style or mood. Black and white can make the hands stand out and give a certain aesthetic.
It could be for a simple and classic look. Black and white makes the legs stand out without too much complexity.
It might be for a stylistic choice. Black and white can give a certain look or mood to the character.
It could be that the creator wanted to focus on the simplicity and contrast. By using black and white, the need for food might stand out more starkly and draw attention.
It could be for simplicity and to give a classic look. Black and white makes the eyes stand out without too much complexity.
Maybe it's for a more classic or artistic look. Black and white can give a certain charm and simplicity.
It could be for symbolic reasons. Maybe to represent good and evil, or simplicity and complexity.
It could be for a stylistic choice to add contrast or create a unique look.