It’s said that when Alexander the Great set out to conquer the Indus Valley, he demanded to see a yeti after hearing stories of this ape-like creature. The locals apparently told him that they could not present one because the creatures could not survive at such a low altitude.

For now, mysterious footprints and eye-witness accounts are all we have to prove the yeti’s existence. Some people believe that sightings of the yeti were likely sightings of the extremely rare Tibetan blue bear. It’s either that, or Tibetan blue bears don’t exist, and sightings of these bears have just been yetis.