Although cryptozoology is often scoffed at and widely considered a pseudoscience, one of the reasons it made men like Barnum rich and continues to fascinate people today is the fact that people realize they've only scratched the surface when it comes to identifying all the different forms of life on Earth. As Martin DelRio pointed out in The Loch Ness Monster, "Animals previously unknown to science have been found more than once in the past hundred years. For instance, there's the megamouth shark (megachasma pelagios), a fifteen-foot-long creature weighing nearly a ton. The first specimen was discovered on November 15, 1976, when it was found entangled in the drag anchor of a U.S. Navy ship. The new creature wasn't described scientifically until 1983...The megamouth remains the only species in its genus, and the only genus in its order."

While cryptids like Bigfoot and the Yeti have become popular in recent decades, none of them can touch the notoriety of the Loch Ness Monster, a large, unknown creature allegedly living in a loch in the Highlands of Scotland. Was it a relic dinosaur or perhaps an entirely new species? New photographs and new eyewitness sightings fueled a growing debate and transformed the Loch Ness Monster, also known as Nessie, into an instantly recognizable staple of pop culture, to the extent that hundreds of thousands of visitors came to Loch Ness every year in hopes of catching a glimpse of the loch's famous inhabitant.

The Loch Ness Monster remains an international brand and the best-known cryptid in the world, but after almost 100 years of fame and media attention, what do people really know about this cryptid, and is there any proof that there really is something large and unknown living in a remote Scottish loch?