Carnivore

A carnivore /ˈkɑːrnɪvɔːr/, or meat-eater (Latin, caro, genitive carnis, meaning meat or flesh and vorare meaning "to devour"), is an animal or plant whose nutrition and energy requirements are met by consumption of animal tissues (mainly muscle, fat and other soft tissues) as food, whether through predation or scavenging.

The technical term for mammals in the order Carnivora is carnivoran, and they are so-named because most member species in the group have a carnivorous diet, but the similarity of the name of the order and the name of the diet causes confusion.

Many but not all carnivorans are meat eaters; a few, such as the large and small cats (Felidae) are obligate carnivores whose diet requires nutrients found only in animal flesh. Other classes of carnivore are highly variable. The ursids (bears), for example: while the Arctic polar bear eats meat almost exclusively (more than 90% of its diet is meat), almost all other bear species are omnivorous, and one species, the giant panda, is nearly exclusively herbivorous.

Dietary carnivory is not a distinguishing trait of the order. Many mammals with highly carnivorous diets are not members of the order Carnivora. Cetaceans, for example, all eat other animals, but are paradoxically members of the almost exclusively plant-eating hooved mammals.

Animals that depend solely on animal flesh for their nutrient requirements in nature are called hypercarnivores or obligate carnivores, whilst those that also consume non-animal food are called mesocarnivores, or facultative carnivores, or omnivores (there are no clear distinctions). A carnivore at the top of the food chain (adults not preyed upon by other animals) is termed an apex predator, regardless of whether it is an obligate or facultative carnivore. In captivity or domestic settings, obligate carnivores like cats and crocodiles can, in principle, get all their required nutrients from processed food made from plant and synthetic sources.

Outside the animal kingdom, there are several genera containing carnivorous plants (predominantly insectivores), several phyla containing carnivorous fungi (preying mostly on microscopic invertebrates, such as nematodes, amoebae, and springtails) and carnivorous protists.

Carnivores are sometimes characterized by their type of prey. For example, animals that eat mainly insects and similar terrestrial arthropods are called insectivores, while those that eat mainly soft-bodied invertebrates are called vermivores. Those that eat mainly fish are called piscivores.

Carnivores may alternatively be classified according to the percentage of meat in their diet. The diet of a hypercarnivore consists of more than 70% meat, that of a mesocarnivore 30–70%, and that of a hypocarnivore less than 30%, with the balance consisting of non-animal foods, such as fruit, other plant material, or fungi.