Yesterday's post about slit pupils and rotating eyeballs generated a lot of fascinating comments and links.
I spent the day yesterday beside a lily pond doing watercolor portraits of green frogs, who obliged me by posing very still——until a bug came along. Their attacks were lightning fast and very athletic. Speaking of slit pupils, frogs have them too!
In case you missed them, here are some of the links relating to these subjects:
Function of slit pupils. (Thanks, Kat!)
Rotation of eyeball in humans (intorsion and extorsion) (Thanks, Nick!)
Fun facts about gecko eyes and Wiki diagram of eye muscles. (Thanks, Don!)
Yesterday's post about goat eyeballs (with comments afterward).