did you know....

fish yawn? i have seen one of my gobies act similarly but i always thought of it more of stretching reaction that an actually yawing. it seems however that some species actually really do yawn.

 

get out! I see my goby do that as well, did not realize it was a yawn. Too funny! I guess I must bore the socks off him because he usually "yawns" when I come up to the tank

 

Well that shots the evolution theory out the window.

I read some silly thing years ago that tried to infer that the reason when you see one person yawn is because when cave men where traveling in groups the leader/head caveman would yawn do signal to the other cave persons to stay alert. Called contagious yawning.

Thank You, Cavemen, For Teaching Us How to Yawn — Health Check - TSM Interactive

Any who I think your fish is just messing with you. :laughings

 

fair its wiki but....

Yawn - Wikipedia, the free encyclopedia

 

I have seen fish aggression in the form of posturing, when another fish would swim into my RG territory he would come out with mouth open. My goby did the same thing with my clown. Who ever has the larger oral cavity is the most fierce.

It would seem that yawnings primary function is to increase blood flow to the cranial area and improve oxygen consumption.

I read the part about the Siamese fighting fish though.

One of my cats yawns all the time at me, I figured she was just bored with me.

 

hahaha <3