Cluck! - The Life of an Egg-Laying Chicken: Biography of Ian Duncan is an extra feature in the video. Here Dr. Ian Duncan explains his path to becoming an animal welfare scientist. This will give students a brief understanding of the impact they can have on animal welfare in the field of science. More information on the entire Cluck! video and lessons for each preceding chapter can be found at, http://www.spca.bc.ca/youth/teacher/lesson-plans/cluck-the-life-of-an.html#.VLmK_CvF-Ck The other video chapters can be viewed from that web page as well. On the video screen near the bottom of the page click Playlist to see the other chapters listed.