I don't know about "drowsy" but I have heard that if someone near you yawns, you yawn too. Like yawns are contagious. Yawns don't mean that you're tired. It also means that you're not getting enough oxygen, but that has not been scientifically tested.
Actually that is a lie. Yawns are contagious.
Watch them very carefully, If you see their mouth stretch really wide and their gills opening, then they are yawning. Try letting them look at themselves through a mirror under water, they yawn a lot when they see themselves.
No.
yes, yawns are contagious and you can go to science.howstuffworks.com/life/contagious-yawn.htm
1 yawn means you are tired. 2 yawns means you need a nap. 3 yawns means you need to go to sleep.
When a hippo yawns, it signals that he is about to charge or fight. Definitely run.
"He Who Yawns" was the actual name of Geronimo (Goyahkla), leader of the Apache band in Arizona.
coz
29
I smell a troll.
if someone yawns you say 'I agree'