http://www.abcteach.com/directory/fun_activities/crossword_puzzles/#directory
http://www.abcteach.com/free/c/crossword_dinosaurs.pdf
http://www.abcteach.com/free/members/15961.pdf
http://www.naturescrib.com/images/products/country.jpg
http://www.curiosoft.com/images/AnimalJigsawScreenshots/animal-games-jigsaw-puzzles-screenshots.jpg
http://www.curiosoft.com/tabone/animal-games-jigsaw-puzzles.htm
http://en.wikipedia.org/wiki/Electrocardiogram
http://en.wikipedia.org/wiki/Stethoscope
http://en.wikipedia.org/wiki/Ophthalmoscope
http://en.wikipedia.org/wiki/Otoscope
http://www.hartlepoolmail.co.uk/news?articleid=2943254