Beware of Portuguese Man-of-War

Beware of Portugese Man-of-War. Sign found in Oahu, Hawaii.

Portuguese man-of-war are bad ass. Read about them and see some awesome up close photos on this wonderful pdf from the South Carolina Department of natural resources. I think my favorite thing about them is that they are not jellyfish, but rather a collection of small animals (polyps). These animals are so specialized that they have to work together to form what looks like one animal. And the tentacles are an entirely separate organism.