What Do Fish Do That We Don't Know About?

[AndiFlatland]

Here's an interesting question - never come across the subject in any of the thousands of wildlife programmes I've seen:

Do fish yawn? (And how would you know, since they mostly seem to go around with their mouths agape anyway!)

And do fish sneeze?

(Don't blame me for the twaddle that comes to me in dreams!)

[cupid04]

Oh, the shark, babe, has such teeth dear
And it shows them all pearly white
Just a jackknife has old MacHeath babe?
And he keeps it out of sight.

[Arksided]

Good to see you posting again Sir Alec. Haven't seen you about for a while.
hope you're well.

Sorry for the side-step Andi

[cupid04]

Me sorry too.

[Arksided]

^...she's from Japan.

[cupid04]

He's a stirrer ^^^

[cupid04]

I can be a bit coy...A Japanese Koi carp, lol!

[Arksided]

He's a stirrer Su-shi. ^

[cupid04]

Can't top that...night,night all. x

[Mosaic]

How can we know about what we don't know about....?
Interestingly a new project based on coastal habitats was announced on Radio 4 early this morning - but I can't find a link to it. So maybe this survey will tell us some more 'unknown unknowns'.