Scottish fold cat first appeared as a natural mutation in Scotland in the ’60s. Many veterinarians and competitions juries decided that ears that cats are a strain and that will not allow the cat to develop good and not allow to the cat to clean his ears properly. Deformations of the spine,  backward  legs and the tail  appeared also when two cats of the same type were crossed. Therefore, the Board of the Association of cat lovers in the UK decided not to allow any registered breed Scottish Fold and now this race is not created or taken to exhibitions in Britain. However, creators of the breed continued to produce and to export to Europe and America, proving that it is possible to eliminate the problems of the column ,the legs,  the back and the tail, incorporating  cats with normal ears in the genetic reproducing surveillance. Scottish fold is now recognized on the American continent, where it is met in exhibitions.

Morphological traits
What distinguishes the race Scottish fold of other breeds of cats are the small ears and bent forward and down. Ear lobe is hard, cartilaginous and fully bent, so that covers the opening of the internal ear. Ear tips are rounded. The body is rounded, without seem cumbersome, supported by the States of medium length. The head is large and round with prominent cheeks, neck strong. The nose is short and wide, rounded brush whiskers. The ears are small, with folds ear as close to the skull. The eyes are large and round, and it harmonizes with the color of their fur. Hair is medium length and is often soft. Members are of medium length and directly proportional to the body. The tail is wider at the base, thinning toward the rounded top.
She needs to be fed 70-80 kcal / kg / day. Are prone to obesity, being recommended to  be carefully supervised on the  amount of  the food they eat. When two cats with the bent ears are crossed , the dominant genes that cause the bent of the ears it, can cause deformations of the spine, leg and back tail. Scottish Fold cats ears are difficult to clean the cat itself, so owners need to do this action from time to time. After the age of eight years is  recommended a routine check at the  veterinarian at least once a year for checking teeth and functioning liver and kidneys.

Character and behavior:
It is an active medium breed cat, very affectionate with family members, and is very reserved towards foreign people. Do not like noisy places or unknown places. It is easy to adapt to apartment life. Get along well with children and other pets. Not noisy. Short and thick fur of cats of breed the Scottish Fold is easy to trim and does not require special attention. Regularly brushing helps remove dead hair. Shepherd sheds hair very little.

American Curl breed is famous especially for his bent ears , which are the result of spontaneous mutations. Ears are straight and open, bending through the back, in a graceful curve, opposite to the  Scottish Fold cats, which are bowed and bent toward the front. The ears give the breed an alert and cheerful look.
American Curl breed history begins in a sunny day of June 1981, in Lakewood, California. A black female with long hair and silky, with some unusual ears, appeared at the door of Joe and Grace Ruga. Joe Grace encouraged her not to feed the cat, but the woman, listening to her heart, left a bowl of cat food next to the doorway.  The black and affectionate cat  quickly made its way into the heart of the family, who called  it Shulamith, which means “black but pleasant”.
In December 1981, Shulamith gave birth to her first offspring. Of four kittens, two had their ears bent. He was contacted a geneticist to study this phenomenon, confirming that this unusual ear is the result of genetic mutations, most likely inherited, caused by a dominant gene, and strains without attachments. Referring to it as a spontaneous mutation, the gene that caused the bending ear seemed to follow a single dominant pattern.
Inbreeding began in 1983. The standard of this breed is a medium-sized cat, alert, with an elegant aspect and a sweet expression, open, filled his ears remarkable. Because of his domestic ancestors, American Curl therapy is available both in the long hair, and in one with short hair, both varieties with a soft fur, silky, shiny and attached to the body. breed with long hair is different because of the very bushy tail. The  care of this breed is easily done. An occasional bath and brushing is all that one needs for these cats to maintain coat in good condition.

Morphological traits

The distinctive feature of this breed it  is the unique ear shape. The ears are quite stiff to the touch, high and open, bending the light in an arch. American Curl breed ears were compared with those of Lynx’s, with long tufts of hair accentuating the appearance of bending the ears. Great care must be taken handling the ears to avoid breaking  the cartilage.
When they are born, their ears are straight, but within 3-4 days after birth, the ears start to bend back. In the first  4 months of life, kittens ears gradually bend in different degrees, ranging up when determining the final shape at the age of 4 months. Around this age, professional can determine the quality cat breeder, based on the degree of bending of the ears, correlated with body type.

Character and behavior

In terms of personality, American Curl breed is very people oriented, loyal and affectionate. Being a nosy and curious temperament,  they assist their human companions in any action that those are  planning to do.
American Curl loves human company and adapt very quickly to any other animals, children or new situations. Although cats are considered to be smart, they keep the kitten behavior even on adulthood.

Varieties

Besides the fact that they are available with short fur  and the long fur varieties, the cats of breed American Curl can be any color or coat pattern. The eyes can have a whole range of colors.