A strange shape not dissimilar to that typically associated with the Loch Ness Monster was recently sighted in the water.
An ecology professor has put forward one of the strangest explanations for sightings of long-necked sea monsters.
Footage posted earlier this year on Instagram appears to show a weird shape being carried along by the waves.
Footage captured during an oil and gas expedition shows what looks like the remains of a truly enormous creature.
There have been sightings of a snake-like sea monster off the coast of Southern England for over 100 years.
Marine experts have shed light on a recent viral video showing a bizarre sea creature with three tentacles.
Scientists have unearthed the fossil remains of a gargantuan marine reptile from the time of the dinosaurs.
A new study has highlighted the role that fossils have played in influencing sightings of sea monsters.
An Australian fisherman couldn't believe his eyes when he reeled in the decapitated head of a huge mako shark.
This strange looking 'sea monster' was found washed up on a beach near Christchurch after a storm.
Scientists have found the fossil remains of an ichthyosaur that was almost the size of a blue whale.
Palaeontologists have unearthed the fossil remains of an 18ft sea monster dating back to the Jurassic Era.
Palaeontologists in Russia have discovered a huge new sea creature that lived 130 million years ago.
Scientists have discovered that not all prehistoric marine reptiles laid eggs like crocodiles do.
The teeth of the largest shark in history may have influenced portrayals of a mythological sea monster.
Palaeontologists have unearthed the fossil remains of a gigantic Cretaceous-era ocean predator.
A German submarine said to have been attacked by a sea monster has been found off the coast of Scotland.
A new campaign has been launched in England in an attempt to track down the elusive 'Humber Monster'.
A photograph showing what some claim to be a gigantic sea creature has been circulating the Internet.
The enormous fish, which grows up to 36ft, is believed to have sparked many legends about sea monsters.