How are hippos and whales similar and different?

Hippos and whales are similar in that they both share a common ancestor and are part of the clade called Cetancodonta, which highlights their evolutionary link. Both animals are adapted to a semi-aquatic or fully aquatic lifestyle, with streamlined bodies for movement in water. However, they differ significantly in habitat, as hippos primarily inhabit freshwater environments like rivers and lakes, while whales are fully marine, living in oceans. Additionally, hippos are herbivorous land mammals, while whales are diverse in diet, ranging from filter feeders to carnivorous predators.