There are a few reasons for this:
* Difficult to Keep: Wolverines are solitary, aggressive animals with very specific habitat requirements. They are difficult to keep in captivity and require specialized enclosures and experienced handlers.
* Limited Availability: Wild wolverines are rare and protected, making it difficult to obtain them for zoos.
* Public Interest: Zoos often focus on showcasing popular or easily maintained animals. Wolverines, while unique, are not as commonly requested by visitors.
However, there are a few exceptions. You may be able to find a wolverine in a specialized wildlife park or sanctuary.
If you're interested in seeing a wolverine, you may need to visit a zoo or wildlife park outside of the US.