Comment on "Predator classification by the sea penPtilosarcus gurneyi(Cnidaria): role of waterborne chemical cues and physical contact with predatory sea stars"

Abstract

In their study of behavioural responses of pennatulaceans to physical contact with asteroids in 2002, Weightman and Arsenault claim to be the first to demonstrate that cnidarians have the ability to distinguish predators from nonpredators. In fact, it has been known since at least the 1960s that cnidarians are capable of predator recognition. We briefly describe some of the abundant literature on this topic, especially studies on anthozoans.