Starfish in military history. Three ships of the Royal Navy have borne the name "HMS Starfish": an A-class destroyer launched in 1894; an R-class destroyer launched in 1916; and an S-class submarine launched in 1933 and lost in 1940. In the World War II, Starfish sites were large-scale night-time decoys created during The Blitz to simulate burning British cities. Starfish Prime was a high-altitude nuclear test conducted by the United States on 9 July 1962. Starfish Starfish or sea stars are star-shaped echinoderms belonging to the class Asteroidea. Common usage frequently finds these names being also applied to ophiuroids, which are
Stichodactyla toxin Stichodactyla toxin Stichodactyla toxin (ShK) is a 35-residue basic peptide from the sea anemone "Stichodactyla helianthus" that blocks a number of potassium channels. An analogue of ShK called ShK-186 or Dalazatide is in human trials as a therapeutic for autoimmune diseases. "Stichodactyla helianthus" is a species of sea anemone (Phylum: Cnidaria) belonging to the family "Stichodactylidae". "Helianthus" comes from the Greek words helios meaning sun, and anthos meaning flower, which corresponds to the species' common name "sun anemone". It is sessile and uses potent neurotoxins for defense against its primary predator, the spiny lobster. The venom contains, among other components,