Here's why:
* They're extremely difficult to spot: Their grey-white fur with dark spots blends perfectly with the rocky, snowy landscape of the Himalayas, making them almost invisible to the naked eye.
* They're solitary and nocturnal: They prefer to live alone and hunt primarily at night, further reducing the chances of encounters with humans.
* They're incredibly stealthy: They are agile and swift, moving silently through the mountains.
All these factors contribute to their reputation as ghostly apparitions in the Himalayas, a place where legends and folklore abound.