In folklore, the Loch Ness Monster, or Nessie, is an aquatic being which reputedly inhabits Loch Ness in the Scottish Highlands. It is similar to other supposed lake monsters in Scotland and elsewhere and is often described as being large in size, with a long neck and one or more humps protruding from the water. Popular interest and belief in the creature has varied since it was brought to worldwide attention in 1933. Evidence of its existence is anecdotal, with a few disputed photographs and sonar readings.

A prehistoric-like sea creature gave dog walker Margaret Flippence a monster surprise in 2011The decomposing beast was curled up in the sand at Bridge of Don, AberdeenLondon Zoo marine life expert Rob Deville said: “It could be a killer while given the size of the animal. A pilot whale is another possibility.”

Whatever your view — and experts remain divided — it seems that the best biological evidence suggests we are unlikely to discover a terrifying new monster lurking in the depths. But that’s not to say it won’t happen