Black-faced cats are called Siamese cats and are the most famous short-haired cats. The main reason why Siamese cats turn black is because they have a melanin gene in their bodies. When the environment is colder, their melanin genes will become more obvious, that is, they will turn black.

Why Siamese cats’ faces become darker:

1. The fundamental reason why Siamese cats become darker and darker is that their own TYR gene has mutated. The tyrosine that controls their synthesis has also changed, making their skin color darker and darker when the weather is cold.

2. Siamese cats and key-color Ragdoll cats both have a very significant feature, that is, as the temperature drops, the color of the key color patches on their bodies will become darker and darker, resulting in In cold weather, Siamese cats will turn into a completely black face.