A dog is like a human , it yawns when it is tired or about to go to sleep! :D It also yawns as a sign of disapproval, or when it is stressed, and needs to calm itself down.
because they are tired
Same thing as when you yawn..... When you get tired you get a shortness of breath causing you to yawn...you yawn to catch your breath when your tired...
because she dosent want you to.
Your dog may just do this as a yawn or a contented sigh as he is tired. Not all dogs do this and so its merely a trait of his.
No. They yawn for the same reasons we do.
Guinea pigs do yawn in fact....Usually they yawn because they are surrendering a fight involving a male guinea pig. But it does not mean they are sleepy. Before males start to fight they try to intimidate each other by purring ( a deep sound with trills , Not like a cat) Then the loser of the fight yawns which means they are conceding. Hope I helped :)
It's not unusual for dogs to make noises when they yawn. The same thing happens to people also. It can be caused by the muscle contractions and air passing during the yawn.
they yawn because when you yawn it passes on to other people . so you yawn then someone's right next to you then i think they inhale then they start to yawn ?
yes they yawn quietly
how do you know you yawn if you are sleeping?
No whales do not yawn.
Yes, yawn is an onomatopoeia.
Insects do not yawn. People necessarily do not yawn only when they are tired. Most people, after reading this, will yawn.