Yawn contagion in lions found to also play a role in social behavior

A trio of researchers from the University of Pisa has found that lions, like many other animals, engage in contagious yawning. In their paper published in the journal Animal Behavior, Grazia Casetta, Andrea Paolo Nolfo and Elisabetta Palagi describe their study of lions living in the wild in Africa and what they learned about their yawning practices.