Self-medicating sheep shake off the 'stupid' label 10:00 01 May 2006 From New Scientist CAN sick sheep write their own prescriptions? Almost, since it seems that sheep can select the correct medicine to treat a specific ailment. In anecdotal reports, primates have been observed engaging in self-medication by selecting a specific plant when something has made them ill. Now biologists at Utah State University, Logan, have run experiments that show sheep choosing the right drug to cure an illness. Juan Villalba and colleagues gave lambs food and mild poisons - either grains, tannins or oxalic acid - that made them...