What is hyna?

It seems like there might be a typo in your request, as "hyna" doesn't correspond to a widely recognized term or topic. If you're referring to a specific subject, creature, or perhaps a brand name that is less known or is misspelled, please provide additional context or check the spelling. If you meant something else, like "hyena" or any other subject, feel free to clarify, and I'll be happy to help!