Regis wrote:
I appreciate your good reply, BassmanBruce. You forgot to mention 'luck', which is being in the right time and place.
Luck? Not a chance. Luck happens when opportunity meets preparation. You are "lucky" too often. Too many superb images for it to be luck. Salmon are one of the few anadromous fishes (both salt and fresh water) and migrate from the ocean to the stream at which they came. Science has not the slightest idea as to how they do this.