1. Perissodactyls: These are ungulates with an odd number of toes (typically one or three), with the middle toe being the largest and bearing the most weight. Examples include:
* Horses: Domestic horses, zebras, donkeys
* Rhinoceroses: White rhinoceros, black rhinoceros, Indian rhinoceros
* Tapirs: Brazilian tapir, Malayan tapir, Baird's tapir
2. Artiodactyls: These are ungulates with an even number of toes (typically two or four), with the two middle toes being the largest and bearing the most weight. Examples include:
* Cows: Cattle, bison, yaks
* Pigs: Wild boars, domestic pigs
* Hippos: Common hippopotamus, pygmy hippopotamus
* Giraffes: Reticulated giraffe, Masai giraffe, Rothschild's giraffe
* Deer: White-tailed deer, mule deer, elk
* Antelopes: Springbok, gazelle, wildebeest
* Sheep: Domestic sheep, bighorn sheep
* Goats: Domestic goats, mountain goats
* Camels: Dromedary camel, Bactrian camel
* Llamas: Llama, alpaca
Note: There are some ungulates that don't fit neatly into these two groups, such as the extinct *Indohyus*, an early ancestor of whales.
Overall, ungulates are a very diverse group of mammals, with a wide range of sizes, shapes, and habitats. They play important roles in their ecosystems as herbivores, and they have been domesticated for thousands of years for food, transportation, and other purposes.
