The world's media and skeptics often mock such discoveries, viewing them as unlikely or fabricated.
Shipton discovered large footprints and took photographs, which appeared to show irrefutable evidence of a creature.
They attributed the footprint to a Himalayan langur, an animal that walks on all fours and has different foot characteristics.
Velmans theorized that the footprints could be from a bipedal creature related to Gigantopithecus, a giant ape species.
Some scalps were found to be made from animal hides, specifically the skin of a local goat called sero, shaped to resemble a yeti's skull.
The hand was initially suspected to be from an unknown species but was later determined to be human, adding to the skepticism about Yeti existence.
Political instability in regions where Yeti sightings were reported and unfavorable economic conditions in Russia led to a decrease in exploration efforts.
Some researchers, like Dr. Myra Shackley, believe the Yeti's isolated existence and descriptions match those of Neanderthals, suggesting they might have survived in remote regions.
The Earth's vastness and harsh, unexplored regions, combined with potential Yeti intelligence and avoidance of human contact, make finding conclusive evidence difficult.
The coelacanth, a fish thought to be extinct for 50 million years but later found alive, serves as an example that species once believed extinct could still exist, similar to the Yeti.