'Lost' shark filmed in River Stour
4 September 2013 Last updated at 17:12 BST
A shark… in a river… in Essex.
Yes, you read correctly, and it certainly startled Jody Gibbons, who spotted the starry smoothhound shark while he was walking along the River Stour.
It's estimated to be between 4 and 5 feet long - and thought to have got a bit lost!