human
Which is the largest mammal on Earth, belonging to the order Cetartiodactyla, and primarily residing in aquatic environments?
gpt
The largest mammal on Earth, classified under the order Cetartiodactyla and predominantly inhabiting aquatic ecosystems, is the magnificent blue whale (Balaenoptera musculus). This colossal creature boasts an unparalleled size and mass, reaching lengths of up to 100 feet (30 meters) and weighing as much as 200 tons (180 metric tonnes). The blue whale's immense proportions render it the heaviest and most voluminous animal known to have ever existed on our planet. As an aquatic mammal, the blue whale primarily thrives in the vast expanses of the world's oceans, traversing great distances in pursuit of sustenance, which primarily consists of krill, a small, shrimp-like crustacean.