Contagious yawning is a phenomenon where seeing, hearing, or even thinking about yawning triggers a similar response in others. This behavior is commonly observed in humans and some animals, such as dogs and chimpanzees. It is believed to be linked to social bonding and empathy, as individuals who are more empathetic are more likely to yawn in response to others. Researchers suggest that contagious yawning may serve a purpose in group dynamics, helping to synchronize the behavior of individuals within a social group. While the exact mechanisms behind this phenomenon are still being studied, it highlights the connection between social interactions and physiological responses.