Only when a male cat has a rare mutation that gives him two XX chromosomes and one Y chromosome can he be tortoiseshell. The tabby pattern may not be expressed because of modifying genes. These standards are usually drafted by breeders involved in establishing or promoting the breed and are approved by cat associations. For example, such breeds as the Siberian and Norwegian Forest Cat developed long dense coats to protect themselves from the harsh winters in Russia and Norway. As cats spread around the world, pockets of cats adjusted to their unique environments and passed on their adaptations to their offspring. A cat breed is a group of related felines that share a conformation, meaning a similar physical appearance, or a common geographic region of origin.
- Down and awn hairs are secondary hairs (also called the undercoat) and are more numerous than guard hairs.
- Except for the canines and molars, the cat’s teeth are more or less nonfunctional; most of the cheek teeth do not even meet when the mouth is closed.
- The taste receptors are located on the front, sides, and back of the tongue.
- Thousands of cat mummies have been discovered in Egypt, along with mouse mummies, presumably to provide food for the cats in the afterlife.
- If the cat has two different gene copies for a particular trait, the dominant gene will have a masking or overriding effect on the recessive gene.
- The following article deals with general characteristics of the domestic cat.
Consequently, cats have retained their independent nature and can thrive as predators in the wild today. For an account of the relationship of the cat family to other carnivores, see carnivore. For information on larger cats, see their individual entries (such as lion, tiger, and leopard). However, purring also occurs in cats that are injured and in pain. The average weight of a household cat varies from 2.7 to 4.5 kg (6 to 10 pounds), although among non-pedigreed cats weights up to 12.7 kg (28 pounds) are not uncommon. Both lineages continued to breed with the African wildcat during their respective dispersals.
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The eyebrows and hairs of the cheek, chin, legs, and ears are extremely sensitive to vibrations and provide cats with a great deal of information. The average length of a full-grown domestic cat is 28 inches (71 cm) for males and 20 inches (51 cm) for females. The earliest known association between cats and humans likely dates to the origins of agriculture in the Middle East, about 15,000–10,000 years ago. The following article deals with general characteristics of the domestic cat.
Predators and dominant cats locate by scent, which is why domestic cats may avoid dirty litter boxes. Despite popular belief, the eyes of domestic cats do not actually glow in the dark. The senses of taste and smell are closely related in cats and, because of this, the aroma of food is vital to a cat’s enjoyment. The cat’s hearing is tuned to higher frequencies because the sounds of its usual prey are generally higher pitched. This is why, when trimming the nails of domestic cats, pet owners should cut the sharp white tip of the nail but not the pink quick, since cutting the latter can be painful for a cat. Orange coloration in cats (known as genetic red) is called “sex-linked,” because the gene is located on the X chromosome.
Writers Théophile Gautier and Charles Baudelaire paid the cat homage, and in the 20th century Rudyard Kipling, Colette, and T.S. The cat is also a familiar figure in nursery rhymes, stories, and popular entertainment. (According to legend, maneki-neko was not a black cat; she was a calico.) Maneki-neko (“beckoning cat”) figurines, usually portrayed with one raised paw, are especially common in Japan. For example, in many Western countries, a black cat is considered bad luck, though the same cat in Japan is considered an omen of good fortune. Surprisingly, the cat is mentioned only once in the Bible, in the Letter of Jeremiah.
Adaptations have occurred with changes in prey, but the basic body type has stayed the same. Cats that resemble today’s felids first appeared in the early Pliocene Epoch (5.3 to 3.6 million years ago), and they have continued into present times with remarkably few changes. It is thought that all true cat species evolved from this small civetlike predator. The first felinelike mammal, Proailurus, evolved about 30 million years ago. Purring is a continuous, rattling hum and often is interpreted as an expression of pleasure or contentment.
- Domestic cats are characterized by retractable claws, powerful bodies, acute senses, long tails, and specialized teeth adapted for hunting prey.
- The Greek writer Aesop made frequent mention of cats in his fables.
- As mentioned earlier, the cat family is commonly divided between cats that roar and cats that purr.
- The average length of a full-grown domestic cat is 28 inches (71 cm) for males and 20 inches (51 cm) for females.
- The earliest record of cats in Britain dates to about 936 ce, when Hywel Dda, prince of south-central Wales, enacted laws for their protection.
- Not only is the cat’s hearing acute, but its outer ears are equipped with more than a dozen muscles that allow the ears to swivel 180 degrees.
- In the center of the tongue, the papillae form backward-pointing hooks that rasp meat from the bones of prey and scoop up water when the cat drinks.
Origin and history of cats
Even though the cat is a relatively small animal, it can frighten enemies by arching its back and bristling. Tiny erector muscles, attached to hair follicles, enable the cat to bristle. The tail is part of the spine and generally contains an additional 20-some caudal vertebrae. Cats have no flat-crowned crushing teeth and therefore cannot chew their food; instead, they cut it up.
Down and awn hairs are secondary hairs (also called the undercoat) and are more numerous than guard hairs. The cat’s tail is mobile and used for both balance and communication. The exception is breeds such as the Manx and the Japanese Bobtail, which have mutations that give them short tails or no tails at all. This design also makes it easier to precisely locate the source of sounds. This allows the ears to pivot toward the source of sounds, and the ear shape helps funnel sounds into the ears. This claw-sheathing mechanism is present in all species of the cat family except the cheetah.
Sight and “glowing eyes”
Except for the canines and molars, the cat’s teeth are more or less nonfunctional; most of the cheek teeth do not even meet when the mouth is closed. The construction of the shoulder joints permits the cat to turn its foreleg in almost any direction, allowing for quick turns when chasing prey. Most of the cat’s weight is centered on the front paws while walking. Typically, cats walk or run by moving the front and back legs on each side together.
Because the vertebrae of the spinal column are held together by muscles rather than spinmills casino promo code by ligaments, the cat can move with great agility. However, size and weight can vary considerably, depending upon the sex and breed. The average weight of a healthy cat varies from 6 to 12 pounds (2.7 to 5.44 kg). Mutation has generated the colorful palette of coat colors seen today. Breed “standards” are written guidelines describing the attributes that make an ideal example of the breed.
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Black cats in particular have been tied to witches, and at times they were burned alive along with their supposed witch cohorts. The Cat-Book Poems, a document dating from the Ayutthayan period (1351–1767) in Ayudhya, Siam (now in Thailand), contains illustrations and descriptions of various cats. The Norse goddess Freyja was said to have a golden chariot pulled by two white longhaired cats, and the Egyptians revered a cat-headed goddess named Bastet. The earliest record of cats in Britain dates to about 936 ce, when Hywel Dda, prince of south-central Wales, enacted laws for their protection. In India cats were mentioned in Sanskrit writings about 100 bce, while the Arabs and the Japanese were not introduced to the cat until about 600 ce.
A breeding female (queen) can come into heat as many as five times a year. The pupils of the eyes expand or contract according to the intensity of light. The taste receptors are located on the front, sides, and back of the tongue. They can detect frequencies both above and below the range humans can detect. Down hairs are the most numerous; they are very fine and mat the easiest. In addition, bristling creates air pockets that protect the cat against cold.
For example, the dominant white gene masks the expression of other genes, meaning a totally white cat could possess the genes for nearly any pattern or color. Recent genetic studies have helped determine the origins of some of the oldest recognized breeds. Concerning the domestic cat, it is perfectly designed for two prime functions—pest control and companionship—and people can select a cat according to which purpose is mainly desired.
