Loch Ness Monster:
Popularly known as 'Nessie', the creature is reputedly a huge animal that inhabits the Loch Ness in the Scottish Highlands. Popular interest and belief in its existence has varied since it was first brought to the world's attention in 1933 in a photograph that was taken by Hugh Gray. Evidence of its existence is anecdotal, with minimal and much-disputed photographic material and sonar readings.

The first-ever photograph of the Loch Ness monster that was taken by Hugh Gray. Courtesy/ YouTube

Hugh Gray's 1933 photograph, which is said to be the first known image allegedly taken of the  appeared to show a creature with a long tail and thick body at the surface of the loch. The image is blurred suggesting the animal was splashing. Four stumpy-looking objects on the bottom of the creature's body might possibly be a pair of appendages, such as flippers. Although critics have claimed that the photograph is of a dog swimming towards the camera (possibly carrying a stick), researcher Roland Watson rejects this interpretation and suggests there is an eel-like head on the right side of the image.