Some Cows are more Bullish than Others (video) University of British Columbia Share Print E-Mail Loading video... Caption A dairy calf trained to expect a reward in a certain location now finds the potential reward in a location she has been trained to avoid. What will she do? Her decision indicates whether she is an optimist or pessimist. Credit Animal Welfare Program/UBC Faculty of Land and Food Systems 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.