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In biological classification, Carnivora ( / k ɑːr ˈ n ɪ v ər ə /) is a taxonomic rank, as well as a taxonomic unit, a taxon, in that rank. Carnivora is an order of placental mammals that have specialized in primarily eating flesh, whose members are formally referred to as carnivorans. The order Carnivora is the fifth largest order of mammals, comprising at least 279 species.The teeth of the carnivora are sharp and powerful, with carnivorous teeth (cleft teeth), that is, the last premolar in the upper jaw and the first molar in the lower jaw. The two large cusps of the upper cleft teeth and the two outer cusps of the lower cleft teeth are in a semi-oblique position when they bite, and the more they bite, the tighter they are like scissors, which can cut ligaments and cartilage. The canine teeth are unusually thick, long and pointed, quite sharp, and play a role in piercing.
Lifestyle is predatory.
Most carnivores have a vigorous body, with sharp claws on the toes of their limbs to facilitate catching prey. The way of life is predatory, and the prey are mostly ungulates, various rodents, birds and some large insects. There are many ways to hunt and kill, such as hiding in the main road and waiting, or sniffing and tracking, lurking and approaching, and using sharp teeth and claws as weapons to carry out surprise attacks. Another attack method is long-distance pursuit and hunting. Animals such as wolves and jackals have developed a hunting method similar to collective division of labor. Cats and ferrets are typical carnivores with meat as the main food; dogs and civets follow, including some plant fruits in addition to meat; bears and raccoons eat more plant food, which is close to omnivorous The predation results of hyenas are often robbed by lions and need to be supplemented with carrion, while hyenas eat ants as their main food; giant pandas are also omnivores, with young bamboo and bamboo shoots as their main food, and they will prey on other wild animals and eat some fruits. The vast majority of carnivores live alone, and each adult often occupies a certain area of activity area, which serves as a hunting area for hunting alone, and tries to guard its own "territory". Many species have well-developed secretory glands, and the secretions of North American skunks have a strong smell, which can make people faint for a while. Some species have more developed secretory glands, which are not only weapons of self-defense, but also means of communication and marking fields. Many day and nocturnal.