Hundreds of human-sized jellyfish have been spotted lurking around the Cornish coast in the past few days, in the middle of July 2019. Marine experts have said that there have been more sightings of these gigantic creatures this week than in the last 15 years. Barrel jellyfish are the largest species of jellyfish found in British waters, with a diameter of up to 90cm and weights of up to 35 kilos. (Photo by South West News Service)
