Like much success in life it all comes down to timing and the same applies to a good wildlife photograph. Grizzly bears are easier for the obvious reason that they are always visible on land and once you find them they are there for a while. On a whale watching tour once you find the marine mammals they are not always available for a photograph. A breaching humpback or killer whale is especially difficult as they do not announce their intent and often the result is the first photo posted. The second posting is the result of preparing to take one photo when another occurs. Luck!