Reasons Behind Why Some Dogs Have Bent Ears

1. Regional Variations

Dogs of all kinds are scattered across the globe, each evolving unique genetic traits that are wellsuited to their local environments. One of the most striking examples of this is the difference between Corgis with their distinctive folded ears and those with upright ears. This genetic mutation varies with climate zones, with dogs in colder regions more likely to have the folded ear trait, which helps them retain body heat. Conversely, in warmer areas, the upright ear gene is more prevalent, allowing dogs to dissipate heat more effectively. In the hot southern regions, upright ears also enable them to quickly gather vital survival information.

2. Bloodline Genetics

Typically, if a dog has not been crossbred, its ear shape will remain consistent with that of its parents. If either parent has a folded or upright ear, the offspring will likely inherit this trait, as they are born with the pure bloodline genetics of their ancestors.

3. Breeding Hybrids

As mentioned earlier, a dog's ear shape is usually fixed unless it is crossbred. In such cases, the dog's genes are mixed with those of other dogs, leading to a variety of ear shapes, including folded, upright, and intermediate. This hybridization is why you might encounter dogs with folded ears, even when it's not a common trait in their breed.

4. Nutritional Deficiencies and Calcium

Beyond the factors mentioned above, some dogs may exhibit a folded ear even when other causes are ruled out. This could be due to a calcium deficiency within the dog's body. When the calcium levels in a dog's system do not meet its needs, it can result in a folded ear. Insufficient calcium can cause the ear cartilage to collapse, leading to the characteristic drooping ears.