From your reply to one my post eariler in the year, I thought you must be a scientist in the field of Biology or Zoology. Thanks for a great post and sharing your knowledge. I have a degree in Biology and have worked as an educator in the health feild for 35 years. I also appreciate these discussions because we can always improve our fishing by learning from each other. Don't make fun of me when I misspell a word or don't use the proper grammer from time to time. I seem to be regressing back to my childhood and bad habbits.