The striking YouTube footage of a Portuguese Man o’ War was captured on a beach at Olivenca, Bahia, in Brazil. The stunning ...

Beware St. Johns County beachgoers. Portuguese man o’ war have been spotted on the shore. Man o’ war are a brightly colored relative of the jellyfish. And like a jellyfish, their tentacles can ...

Portuguese man o' war, often mistaken for jellyfish, have been sighted on Florida beaches. While rarely fatal to humans, the sting can be intense and should be treated with hot compresses ...