They’re the bane of our summer days at the beach, inflicting painful stings on swimmers. But who knew bluebottles could look ...

Not only is it not a jellyfish, it's not even an "it," but a "they." The Portuguese man-of-war is a siphonophore, an animal made up of a colony of organisms working together. The man-of-war ...

Nicknamed spaghetti monsters, Rhizophysa are siphonophores, a type of marine animal closely related to the dreaded Portuguese man o’ war. And like their famous relation, they’re actually a ...