The Portuguese man-of-war is one of the most enigmatic dangerous animals in the ocean. It is an invertebrate that is often mistaken for a jellyfish. However, not only is it not a jellyfish, it is also not a single creature. What does this mean?It means that it is not a single animal, but an animal that is made up of many organisms that work together form a single moving creature. This kind of creature is call a siphonophore.
This creature is not very large and it is often only a foot long and half a foot wide. However, its tentacles are suggested to reach as long as 165 feet. This discrepancy is the result of the four separate polyps that make up the body.