Cannibalistic jellyfish invade holiday hotspot as ‘warty comb’ creatures wreak havoc in lagoon after ‘arriving on ship’

A CANNIBALISTIC jellyfish has colonised the waters surrounding Venice, posing “major” problems for people. Carrying the peculiar nicknames “warty comb jelly” and “sea walnut”, it is considered to be one of the 100 most harmful invasive species globally. It is believed to have arrived in the Adriatic Sea in the tanks of cargo ships passing…