Lions Find Yawning Contagious Like Humans Do Scientists Say
The phenomenon may be a way of helping the big cats to stay vigilant, scientists believe. The team, from the University of Pisa in Italy, have published their findings in the April edition of the journal Animal Behaviour. Scientists have a number of explanations for why we yawn and they can be grouped into two categories: physiological and communicative. In other words, yawning may be a result of some biological factor, but it could also play a part in social behavior....