observation

389

This Praying Mantis has three simple eyes in the center of its face, and two large, compound eyes. What are the two black dots on the compound eyes?

434

I took this photo during a boat ride on the Colorado River. I liked the way the canyon walls reflected in the water near the boat's wake. Since the water was crystal clear, why do you see the reflection of the canyon, instead of seeing through to the bottom of the river?

448

Our friends have a huge crop of hickory nuts this year, and I noticed these in their yard. What do these hickory nuts tell us?

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