Yellow and blue damselfish This striking yellow ... The mythical-looking cannonball jellyfish truly are a sight to behold, especially on full moon days when they are often spotted grouped together ...

Alexey Masliy/ Shutterstock The fried egg jellyfish – Cotylorhiza tuberculata – is named for its distinctive domed, yolk-yellow body. This jellyfish is mostly found in the Aegean, Adriatic and ...

Yellow flags have been hoisted as a cautionary measure following multiple sightings of Portuguese Man O'War jellyfish. In addition to the yellow flags, a distinctive purple flag has also been raised ...

UK holidaymakers visiting Spain and its islands are being warned of an increase in jellyfish washing up on its popular ...