Why is it... (chameleons vs. frogs)

[Klyde O'Scope]

Why is is chameleons usually look like they're frowning, and (but?) frogs usually look like they're smiling?

Are we missing something?

 

[bruce the cham]

mmmm

 

[bruce the cham]

mmmm

 

[MissSkittles]

*edit: random pics from google

And you certainly can’t forget so soon about last month’s photo contest winner.

 

[kinyonga]

The frogs are looking straight forward so they only see part of the picture... the chameleons see in every direction so they are much more aware of the whole picture! Just kidding!

 

[Mountain Dragon]

no smiley face here

 

[Klyde O'Scope]

*edit: random pics from google

Of course there are exceptions, hence "usually".
When I counted pics on goggle, the "usuallly" held up.
YMMV.