LINKEDINCOMMENTMORE

Ya gotta see this!A humpback whale lifts its tail out of the water and slaps it hard against the surface. This behavior is called lobtailing. No one knows exactly why whales do this but it caught this audience by surprise.

Read or Share this story: http://www.ktvb.com/story/news/local/todays-morning-news/2014/06/30/11790675/