Frog and toad pupils mainly come in seven different shapes
Analyzing over 3,200 species revealed diamonds, fans and more
![Hyloscirtus tigrinus frog eye up close](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2021/08/081921_CW_frog-eyes_feat.jpg?fit=1030%2C580&ssl=1)
The pupil shapes of frogs (Hyloscirtus tigrinus, shown) and toads generally didn’t correspond with particular habitats or habits.
Santiago R. Ron