While the man o' war closely resembles a jellyfish, it actually belongs to a group called siphonophores. They're named for ...

Jellyfish-like creatures, known as Portuguese man-of-wars, have been spotted recently along ... Though interesting to look at, the Portuguese man-of-war’s venom can be deadly to small fish and painful ...

Man-of-war are known for their long tentacles that grow to be an average of 30 feet, but can be around 100-feet-long, ...

UK tourists visiting Spain have been issued an urgent warning as popular Spanish beaches are experiencing "jellyfish invasions" after the dangerous Man of War and more harmless sail jellyfish have ...

Jellyfish-like creatures, known as Portuguese man-of-wars ... the Portuguese man-of-war’s venom can be deadly to small fish and painful to humans, according to the National Oceanic and ...