Zach Walsch, University of British Columbia Okanagan campus (image) University of British Columbia Okanagan campus Share Print E-Mail Caption This is UBC Assoc. Prof. Zach Walsh, co-author of the study. Credit UBC Okanagan Usage Restrictions None Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.