Detecting wooden blocks with strange shapes over 500 years old on the seabed

After a long sleep of more than 500 years in the sea, medieval "sea monster" was picked up but it could not swim because it was a block of wood with an odd shape.

The strange "sea monster" 500 years old

"Sea Monster" weighs about 300 kg, with lion-like ears but the head and muzzle resembles a crocodile. It is said to be a mascot on the Gribshunden ship , salvaged off Ronneby, south of Sweden.

Screenshot of Daily Mail

The Gribshunden ship was identified in the 15th century, sunk after a fire in 1495.

UPI news agency quoted Johan Ronnby, professor of archeology at Södertörn University, said it was an imaginary animal with dragon figure, lion ears and crocodile snout. The salvage of "sea monster" is a rare opportunity to learn about the past.