Butterfly, Butterfly (The Last Hurrah) Butterfly, Butterfly (The Last Hurrah) "Butterfly, Butterfly (The Last Hurrah)" is a song by A-ha, and their final recording before their second splitting on 4 December 2010. The song was sold digitally in Norway from July 5. It is included on "25", a compilation album released on July 19. Its world premiere was on June 14, 2010. The single entered the Norwegian single chart at #13 and reached #6 on the airplay chart soon after. It also charted at #66 in the World singles official top 100. Much like many of A-ha's early music videos (including that of "Take on
Viceroy (butterfly) not be a good model-mimic pair for Batesian mimicry. Experimental evidence has shown that avian predators express aversion to the queen butterfly after being exposed to viceroys. That the avian predators avoided the queen butterfly implies that the queen does not serve as a model and the viceroy as a parasitic mimic; rather, they may be Müllerian co-mimics. When avian predators were exposed to butterfly abdomens without the wings, many avian predators rejected the viceroy after a single peck. Furthermore, they exhibited distress behavior similar to that displayed when eating other, known, unpalatable species. When palatability was measured by looking