This sped-up video (60x speed) shows the fascinating effect of ArBN on the common starfish (Asterias rubens). While ArBN doesn’t cause complete stomach retraction - it’s about 50% after 6 minutes.

Biologists have discovered that bombesin, a neurohormone controlling appetite in humans, also regulates feeding in starfish, revealing its ancient evolutionary origin dating back over 500 million ...

A team of biologists at Queen Mary University of London has discovered that a neurohormone controlling appetite in humans has an ancient evolutionary origin, dating back over half a billion years.