Humpback slapping Fin and Tail -- commentary by Peter Halley, Local Newfoundland Entertainer

In this video, you will see a Humpback slapping his pectoral fin and tail. Pectoral fin slapping is a showy act to impress or attract mates. It can also be used as a warning. As well, tail slapping is thought to be an agressive act. However, from the surface, this does not look agreesive at all.