Experts and animal psychologists are still clueless why over 600 dogs have jumped off a bridge in Scotland for no apparent reason.
Dubbed as the Dog Suicide Bridge located near the village of Milton in the burgh of Dumbarton, the century old bridge has had at least 50 dogs who have leaped and died in the waterfalls below, reports Atlasobscura.
The only connecting factors for this bizarre phenomenon are that dogs usually jump from the same side of the bridge in clear weather.
Some locals believe that ghosts have been haunting the bridge, which lived in the Gothic castle Overtoun House, a 19th-century country house and estate in the vicinity owned by the White Family, which was turned into a convalescent home for injured soldiers during the Second World War.
Still others claimed that the alleged dog suicide was provoked by the spirit of a 'White Lady of Overtoun' who has lived there for over a century.
In a report from Mirror, a philosophy teacher named Paul Owens claimed that he felt a firm, hard prod that was trying to push him over the bridge just like the dogs when he once went there.
Moreover, a man named Kevin Moy threw his baby son over the bridge and tried killing himself in the same spot in 1994.
In spite of the mystery, a leading animal behaviourist Dr David Sands offers a more scientific and practical explanation.
"I think it's highly likely at all of the cases that it was curiosity that killed the dog."
While recognizing that coming to the place gives him 'a kind of strange feeling', "It's perfectly natural for people to want to look down and I'm wondering if it's the same for dogs." says Sands.
In the mean time, a sign is now placed in the "dangerous bridge" that warns dog owners, "Please keep your dogs on a lead."