Which order is associated with even-toed animals?

• A. Cetacea
• B. Chiroptera
• C. Perissodactyla
• D. Artiodactyla

Answer: (D)

Even-toed animals are grouped as Artiodactyla. In this order, weight is borne by two main toes on each foot—the third and fourth digits—often with a split hoof that reflects those two toes. This characteristic separates them from odd-toed ungulates, like horses, where the weight rests mainly on a single toe (the third). Artiodactyla includes many familiar herbivores such as cows, sheep, goats, deer, and also pigs and camels. While whales and dolphins are mammals that ended up in a broader Cetartiodactyla grouping, the term typically used for the land-dwelling, even-toed ungulates is Artiodactyla, making it the best fit for describing even-toed animals.