Thank-you for taking the time to read it. Please see the following note, which provides some details as to why the rabbit is unclean.
From:
https://amazingdiscoveries.org/C-deception-unclean_animals_pig_fish_mammals#!
Rabbits
Even though the rabbit is herbivorous,
Leviticus 11:6 states that it is unclean. The rabbit has a very enlarged caecum. In order for the rabbit to obtain sufficient nutrients from the plants it eats, it has to ferment the material. This requires a fermentation chamber with an alkaline environment. Since the rabbit does not have a pre-stomach, like the cow does, it has to use its enlarged caecum.
However, its caecum is sandwiched between its gut and rectum and most of the absorption of the nutrients takes place there. When the rabbit redigests this material, it becomes coprophagous. In other words, it eats its own excrement. Consequently, the level of toxins in its tissues is far higher than in other herbivores. Bile salts, fatty acids, gases, and ammonia levels are all at unacceptable levels for human consumption. All rodents, and even the horse, fall into the same category.
-------
You may or may not know that rabbits form blisters under their skin during the warmer months of the years, which is how they physically rid themselves of the toxins which build up in their tissue. So they have a visible sickness to let people know they're unclean. Another interesting article on them below, written by someone who doesn't know about the perfect healthy diet, but is finding out through other means why our Creator labeled them as unclean.