Animals that may or may not exist — the Bigfoot question, Loch Ness, Mothman, the Dover Demon, and the small army of regional witnesses who can't all be lying.
Between November 1966 and December 1967, residents of Point Pleasant, West Virginia reported repeated encounters with a roughly seven-foot-tall winged humanoid with glowing red eyes — most often near an abandoned WWII munitions complex. The sightings stopped, by most accounts, on December 15, 1967 — the day the Silver Bridge across the Ohio River collapsed during rush hour, killing 46 people.
Modern Loch Ness sightings begin in 1933 with a road-construction crew's report and a newspaper article that gave the creature its nickname. Hundreds of eyewitness accounts, photographs, and sonar contacts have followed across ninety-plus years. Three exhaustive scientific surveys — Edward Mountain 1934, Operation Deepscan 1987, Neil Gemmell's eDNA study 2018–19 — found no evidence of a large unknown vertebrate, but none could fully account for every sighting or sonar return.