Porpoise Spotted In River Thames: Photo
Tuesday 19th February 2013
A propoise has been spotted in the River Thames.
Image: Toby Forester
Sightings on Twitter suggested a dolphin was swimming in the river in London, but the Environmental Agency believe the stumpy fin means it is actually a harbour porpoise.
Toby Forester, who took this photo of the creature at Putney, said it was a suprise the see it swimming in the river 20 miles from the sea.
In 2006, a whale was seen swimming up the River Thames.