| ▲ | HPsquared 4 hours ago | ||||||||||||||||||||||||||||
It's a bit like laughing. Synchronise the mood of the group. I assume other mammals have contagious yawns too? | |||||||||||||||||||||||||||||
| ▲ | wjb3 2 hours ago | parent | next [-] | ||||||||||||||||||||||||||||
I think you're onto something here. Does anyone know if there are examples of very non-social species yawning (i.e., something that has a brief mating period with no prolonged pair bonding, and then it lays eggs and takes off)? | |||||||||||||||||||||||||||||
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| ▲ | dcrazy 4 hours ago | parent | prev [-] | ||||||||||||||||||||||||||||
Cats certainly do. Strangely, dogs sneeze to show deference. | |||||||||||||||||||||||||||||
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