The small intestine of a lion is shorter in length than that of a deer.
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Herbivores are animals whose primary food source is plant-based. Examples of herbivores include vertebrates like deer, koalas, and some bird species, as well as invertebrates such as crickets and caterpillars. These animals have evolved digestive systems capable of digesting large amounts of plant material. The plants are high in fiber and starch, which provide the main energy source in their diet. Since some parts of plant materials, such as cellulose, are hard to digest, the digestive tract of herbivores is adapted so that food may be digested properly. Many large herbivores have symbiotic bacteria within their guts to assist with the breakdown of cellulose. They have long and complex digestive tracts to allow enough space and time for microbial fermentation to occur. Herbivores can be further classified into frugivores (fruit-eaters), granivores (seed eaters), nectivores (nectar feeders), and folivores (leaf eaters).
Omnivores are animals that eat both plant- and animal- derived food. Although the Latin term omnivore literally means “eater of everything”, omnivores cannot really eat everything that other animals eat. They can only eat things that are moderately easy to acquire while being moderately nutritious. For example, most omnivores cannot live by grazing, nor are they able to eat some hard-shelled animals or successfully hunt large or fast prey. Humans, bears, and chickens are examples of vertebrate omnivores; invertebrate omnivores include cockroaches and crayfish.
Carnivores are animals that eat other animals. The word carnivore is derived from Latin and means “meat eater.” Wild cats, such as lions and tigers, are examples of vertebrate carnivores, as are snakes and sharks, while invertebrate carnivores include sea stars, spiders, and ladybugs. Obligate carnivores are those that rely entirely on animal flesh to obtain their nutrients; examples of obligate carnivores are members of the cat family. Facultative carnivores are those that also eat non-animal food in addition to animal food. Note that there is no clear line that differentiates facultative carnivores from omnivores; dogs would be considered facultative carnivores.
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Answer:
yes, the small intestine of a lion shorter in length than that of deer because Ruminants (the name stems from the first stomach of herbivores) have long intestines and complex digestive systems because the food they consume has to be broken down successively to extract nutrients.
Deer are “browsers.” They eat a lot of leaves from trees and shrubs. These tend to have somewhat higher nutritional value than grasses, which comprise the food of “grazers.”
A deer’s small intestine is about 8.5 meters (28 feet) long, or about seven times the length of the animal. A grazer, such as a cow, may have a small intestine that is about 20 times the length of the animal; about 40 meters (130 feet) for a cow 2 meters (6.5 feet) long. The small intestine of a human is about 6 meters (20 feet), or around 3.5 times the height of an average person. Humans can be considered omnivores, consuming both animal and vegetable food sources. A true carnivore (a dog for example) has a small intestine that is about 2.5 times the length of the animal, about 1.5 meters (60 inches) for an animal that is 0.6 meters (2 feet) long.
I think you can see the trend here. The more concentrated (in proteins and fats) the animal’s food source is, the less internal real estate is devoted to digesting the food, and vice versa. For a deer, it may take 2–3 days for food consumed to pass through its four stomachs, small intestine and colon. It takes even longer in a cow’s digestive system, about a day for a human, and only several hours for a carnivore.