The Portuguese man-of-war is a siphonophore, an animal made up of a ... which sits above the water and somewhat resembles an old warship at full sail. Man-of-wars are also known as bluebottles ...

This beautiful siphonophore, Pyrostephos vanhoeffeni, is typically encountered in Antarctic waters. Siphonophores are not an individual animal, but a colony of individuals that all serve a ...