Fish intelligence in paradise fish ("Macropodus opercularis") which avoid places where they have experienced a single attack by a predator and continue to avoid for many months. A number of studies have shown that fish can retain information for months or years. Anecdotally, channel catfish ("Ictalurus punctatus") can remember the human voice call announcing food five years after last hearing that call. Goldfish remember the colour of a tube dispensing food one year after the last tube presentation. Sockeye salmon still react to a light signal that precedes food arrival up to eight months since the last reinforcement. Some common rudd and
What Is Life All", "Mystical One" and "Pisces Fish". Joshua Greene, another religious academic, identifies the song as part of its parent album's "intimately detailed account of a spiritual journey": where "Awaiting on You All" shows Harrison "convinced of his union with God", "What Is Life" reveals him to be "uncertain that he deserved such divine favor". The song's second verse repeats what Inglis refers to as the "somewhat confusing promise" from Harrison (in lines 3 and 4) should his love be "rejected": Musically, Simon Leng describes "What Is Life" as "Motown-spiced" and a comparatively rare example of its composer's willingness to embrace