Incredible footage shows just what the Portuguese man o' war look like as they wash up on multiple beaches in Cornwall.
The highly venomous jellyfish-like creatures have been washed up on Cornish beaches by the wind and waves from the recent storms.
The Portuguese man o' war is not a jellyfish, but a floating colony of tiny marine animals, called hydrozoans, all working together collectively.
This footage was filmed on October 8.
