Are black whiskers on a cat rare?

Black whiskers on a cat are not rare. In fact, they are very common and are not a specific trait or breed characteristic.

Whiskers, also known as vibrissae, are sensory hairs that help cats navigate their environment. They are usually the same color as the cat's fur, but can sometimes be a slightly different shade.

So, if your cat has black whiskers, it's simply because their fur color is black or dark.