Final answer:
In 'Ender's Game', Ender Wiggin notices the differences between the Ribeiras and the rest of the people on Lusitania.
Step-by-step explanation:
In the book 'Ender's Game' by Orson Scott Card, the character Ender Wiggin observes that the Ribeiras are different from the rest of the people on the planet Lusitania. The Ribeiras are a group of colonists who have settled on Lusitania and are descended from Portuguese explorers. They have their own distinct culture, language, and customs that set them apart from the other groups on the planet. For example, the Ribeiras have a strong sense of community and value their traditional ways of life.