But what about mythical and mysterious insects and arachnids? Here is a classic example.
A Killer Worm
But what about the creepy crawlies, the smaller creatures that we deal with every day, whether it be swatting that pesky fly, watching that beautiful butterfly in the air or screaming at that perceived huge spider scurrying up your wall?
The varied species of insects and arachnids make up more than half of all known living organisms on the planet, and can be found in every kind of environment on Earth, so it is only natural that mythical anthropods have a small place alongside other cryptid forms.
It is said to have a preference for the colour yellow, and dwells underground. It also has, some claim, a tail that can emit a electrical charge that can travel metres, and a mouth with many layers of sharp small teeth.
Western scholars and explorers disregard the stories as folklore, but many still believe the creature does exist, especially the locals who say Olgoi-Khorkhoi (meaning "large intestine worm"), as it is named locally, regularly kills camels and lays its eggs in its victims intestines.
Legends have been told of the creature over centuries by Mongolians, but the creature only came to Western attention when a American paleontologist published a book in 1926 and described being part of a "gathering" by Mongolian officials sharing stories of recent sightings of the creature. Professor Roy Chapman Andrews was not convinced by the second hand tales however and concluded the creature was folklore.
Many cryptozoologists believe the creature does exist and many have written about their theories regarding the creature and its identity.
Could a yet unknown species of worm reside under the arid sandy landscape of the Gobi Desert, killing camels and humans with an acidic spray or electrical discharge?
Or perhaps it is a bizarre extra-terrestrial creature that resides in all desert areas of the Globe?
With only anecdotal and second hand reports of the creature, will modern science eventually ensnare the elusive Mongolian Death Worm?