Here's why:
* Different habitats: Manatees are found in warm, tropical and subtropical waters of the Americas, while walruses live in the Arctic and sub-Arctic regions.
* Different diets: Manatees are herbivores, feeding on plants, while walruses are carnivores, mainly eating clams and other shellfish.
* Different adaptations: Manatees have adapted to life in warm water, while walruses have thick blubber and a layer of fur to survive in frigid climates.
These fundamental differences mean that manatees and walruses would never naturally encounter each other in the wild, let alone interact.