For purposes of this question, I am assuming you mean Wapiti, which are also known as "elk". The complete answer depends somewhat on the subspecies of elk and a great deal on the breed of horse. Obviously it matters whether you are talking about a Clydesdale mare or a Shetland Pony mare.
Bull Elk weigh an average of 320 kilograms (710 lb), standing 1.5 meters (4.9 ft) at the shoulder and averaging 2.5 meters (8.2 ft) in length. Males of the largest subspecies, the Roosevelt Elk get to be about 3 meters (10 feet) in length, stand about 1.5 meters (5 feet) tall at the shoulder and can top 600 kilograms (1,300 lb).
The size of horses varies by breed, but also is influenced by nutrition. Light riding horses usually range in height from 1.42 to 1.63 meters (4.7 to 5.3 ft) and can weigh from 380 to 550 kilograms (840 to 1,200 lb). Larger riding horses usually start at about 62 inches (1.57 m) and often are as tall 1.7 m (~6.7 feet), weighing from 500 to 600 kilograms (1,100 to 1,300 lb). Heavy or draft horses are usually at least 1.6 to 1.8 meters (5.3 to 6 feet) high and can weigh from about 700 to 1,000 kilograms (1,500 to 2,200 lb).
It is probably not too far off to say that a bull elk is about the same size as a female horse (as long as you aren't including those huge antlers they sport).
The Eurasian Elk, Alces alces, which is called moose in North America, is even bigger than the Wapiti. On average, an adult moose stands 1.8-2.1 m (6-7 ft) high at the shoulder and weighs 380-720 kg (850-1580 pounds). The largest of all is the Alaskan subspecies (A. a. gigas), which can stand over 2.1 m (7 ft) at the shoulder, has a span across the antlers of 1.8 m (6 ft) and averages 634.5 kg (1,396 lbs) for the bulls. The largest confirmed size for this species was a bull shot at the Yukon River in September 1897 weighing 820 kg (1,800 lb) and was 233 cm (92 in) tall at the shoulder.
A bull moose (Eurasian Elk) would be expected to be bigger than a female horse unless you are talking draft horses like Clydesdales - which would be close to the same size but heavier.
A male is called a 'bull' and a female a 'cow'
A satellite bull is a bull elk that hangs around another bull elk's harem of cows.
Most likely...Black Elk, Sitting Bull, Crazy Horse
are bull elk lighter in coloring than cow elk
Crazy horse, sitting bull, black elk,
Among the Sioux, these were some of the more famous: Red Cloud Crazy Horse Sitting Bull Buffalo Hump Black Elk Big Foot White Bull Gall Bloody Knife Crow Dog Rain in the Face Mary Good Road Russell Means Little Hawk Touch The Clouds Rattling Blanket Woman American Horse Red Horse Lone Horn Spotted Tail
No. A horse weighs 1000-1500 pounds, while elks can weigh up to 550 pounds.
A cow elk is a female elk.
Female elk don't have antlers.
The horse is a little faster than elk, horse can run 47.5 mph, Elk 45 mph, though perhaps in some extreme situations Elk could be faster than a horse.
No. Just like in domestic cattle, bison, elk, moose, etc., the bull is the male (or "boy") not female (or "girl"). Female yaks are called cows.
The cow elk. Don't go for the bull elk unless your mate is with you or you will die