Tim has a Ph.D. in Physiology and Pharmacology and retired, the first time, in 2007 after a twenty-five year career in the biotechnology industry making vaccines and cancer therapies. He then became a biopharmaceutical entrepreneur and co-founded a new company focused on new cancer therapeutics. He retired the second time in 2016 when the company was successfully sold. Since 2016 he has focussed his efforts on supporting conservation projects for freshwater turtles and tortoises, and cycads, worldwide. He is serving as co-chair of the conservation committee of the IUCN Cycad Specialist Group, co-founder of the conservation ngo Wild Cycad Conservancy, member and past chair of the Advisory BOD of the University of California Botanical Garden, a member of the BOD of the Turtle Survival Alliance, as well as a member of the BOD of BFREE and CRIOCO, LLC.