* Scientific name: Cervus elaphus nelsoni
* Size: Bulls stand up to 5 feet (1.5 m) tall at the shoulder and weigh up to 700 pounds (318 kg). Cows stand up to 4 feet (1.2 m) tall at the shoulder and weigh up to 500 pounds (226 kg).
* Habitat: Rocky Mountain elk are found in coniferous forests and mountain meadows in the western United States and Canada.
* Diet: Rocky Mountain elk are herbivores and eat a variety of plants, including grasses, forbs, and shrubs.
* Behavior: Rocky Mountain elk are social animals that live in herds. Bulls establish territories during the rut, which occurs in the fall. Cows give birth to a single calf in the spring.
Roosevelt Elk
* Scientific name: Cervus elaphus roosevelti
* Size: Bulls stand up to 6 feet (1.8 m) tall at the shoulder and weigh up to 800 pounds (363 kg). Cows stand up to 5 feet (1.5 m) tall at the shoulder and weigh up to 600 pounds (272 kg).
* Habitat: Roosevelt elk are found in coastal rainforests and redwood forests in the Pacific Northwest.
* Diet: Roosevelt elk are herbivores and eat a variety of plants, including grasses, forbs, shrubs, and leaves.
* Behavior: Roosevelt elk are social animals that live in herds. Bulls establish territories during the rut, which occurs in the fall. Cows give birth to a single calf in the spring.
Tule Elk
* Scientific name: Cervus elaphus nannodes
* Size: Bulls stand up to 5 feet (1.5 m) tall at the shoulder and weigh up to 600 pounds (272 kg). Cows stand up to 4 feet (1.2 m) tall at the shoulder and weigh up to 400 pounds (181 kg).
* Habitat: Tule elk are found in wetlands and grasslands in California.
* Diet: Tule elk are herbivores and eat a variety of plants, including grasses, sedges, and rushes.
* Behavior: Tule elk are social animals that live in herds. Bulls establish territories during the rut, which occurs in the fall. Cows give birth to a single calf in the spring.
Manitoba Elk
* Scientific name: Cervus elaphus manitobensis
* Size: Bulls stand up to 5 feet (1.5 m) tall at the shoulder and weigh up to 600 pounds (272 kg). Cows stand up to 4 feet (1.2 m) tall at the shoulder and weigh up to 400 pounds (181 kg).
* Habitat: Manitoba elk are found in forests and grasslands in Manitoba, Canada.
* Diet: Manitoba elk are herbivores and eat a variety of plants, including grasses, forbs, and shrubs.
* Behavior: Manitoba elk are social animals that live in herds. Bulls establish territories during the rut, which occurs in the fall. Cows give birth to a single calf in the spring.