The Same Universe
It totally makes sense for movies released by the same studios to be set in the same universe. For instance, there’s a theory going around that all Pixar movies are set in the same universe, though at different times, but we’ll cover that later.
One person points to the similarities between Robin Hood and Zootopia as being evidence of the oneness of the Disney/Pixar universe. If you remember, one of the main characters in both movies was a fox, and they even wore similar clothes. Secondly, they were both ruled over by lions. Also, there aren’t any humans present in either of the films. This might be a stretch, but it’s certainly worth wasting your time contemplating.