What is the rarest pet?

In the realm of cryptocurrency and finance, where digital assets and innovative technologies reign supreme, the question of "What is the rarest pet?" may seem out of place. However, let's approach this inquiry with the same rigor and curiosity we apply to understanding the nuances of blockchain protocols or crypto market trends. When one considers rarity in the context of pets, the criteria become more subjective. Is it the sheer scarcity of a species? The difficulty of acquisition? Or perhaps the unique qualities that set a particular pet apart? In the crypto world, we value rarity in terms of supply and demand, so let's transpose that thinking. If we were to apply a similar lens to pets, the rarest pet could be one that is highly endangered in the wild, making it exceedingly difficult to find or adopt. It could also be a breed or species that is exceptionally unique, either due to its genetics or its behavior. With these criteria in mind, what pet would you consider the rarest?