From Patrick:
At Penn State on July 4th there were students there from the Shavers Creek Nature Center. They had the skull of a barn owl showing the huge socket for it's eye ball. Next to it was a softball with a "iris pupil" drawn on it with magic marker.
When our grandson asked about the ball they explained:
"That owls eyes are so big they cannot rotate in their skulls so they have to turn their heads to follow their prey. If we had eyes as big as an owl relative to our skull our eye balls would be as big as a softball."
Pretty neat analogy!
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