Leonard I WassenaarDr. Len Wassenaar was a senior Research Scientist with Environment Canada for 23 years, specializing isotope analytical measurements and applications in hydrology and ecology. He and Dr. Hobson worked closely together to develop many of the foundatioal analytical tools to assign animals to origins using isotope approaches. Currently, Dr. Wassenaar serves as a Team Leader in Nuclear Applications Division of the International Atomic Energy Agency (IAEA) in Vienna, Austria. Read More Read Less