Veterinarian Karen Lehe of West Lafayette talks about her field of work during a class at Southwestern High School on Tuesday. Lehe spoke to the 8th grade class, agriculture mechanics class, animal science class and veterinary science class. Lehe works with Merek sales representatives on swine health products from her home office. She also owns Hickory Ridge Research and Consulting, a swine research facility, with her husband. (Staff photo by Ken Ritchie/