So called "cut" ears is a rare condition, when cartilage structure of a pinna does not develop normally, leaving ear cavity unprotected.

Researchers expected cats with such a condition to have other troubles with cartilage elsewhere in the body, but luckily enough they did not find anything outstandingly wrong within cats with underdeveloped ears. However the overall condition of their joints were slightly worse, than in other cats of the same age group. 

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But scientists have not rushed to draw any conclusions on it, as there are a lot of other factors that can cause such minor deterioration of structures. However they do admit that it could cause more troubles with cat`s aging.

Researches investigated the collected data and came to several conclusions of which they are sure ;

If one of the parents has "cut" ears, the outcome will depend strongly on which type of ears the other parent has ;

x Classic Ears ( e1 ) :

  - Highly unlikely to get a cub with cut ears. Cubs with folded ears were noticed in such litters along with cubs with normal ears.

x Big Ears ( e2 ) :

- Not a single cub with cut ears has been produced so far by such pair.

x Curved Ears ( e4 ) :

- Strangely enough, cats with curved ears appeared to be the second best choice if breeder`s goal is to produce more cats with cut ears.
Chances are as high as 25% to get cubs with cut ears. With other options being classic ears (around 40%) and curved ears (around 35%)

x Folded Ears ( e3 ) :

- There are equal chances to get cubs with classic ears and folded ears. There is a roughly 20% chance to get a cub with cut ears.

x Cut Ears ( e5 ) :

- The ratio of inheritance of the trait is roughly 50% if both cats have underdeveloped ears with only other option being normal classic ears.

Breeding Folded Ears ( e3 ) x Folded Ears ( e3 ) For Cut Ears :

- Though this research is yet ongoing, it has come to light in recent years that the Cut Ears Trait has been realized possible from breeding of which both parents have Folded Ears.
At this time, it is figured roughly 20-25% of cubs from such litters have been born with this trait. ( Roughly 1 in every 4 cubs )