The Panda’s Thumb

Photograph by Al Denelsbeck.

Photography Contest, Honorable Mention.

Sphodros atlanticus – purseweb spider. Mr. Denelsbeck writes, "The business end of a male purseweb spider. While noticeable from above and seeming...

A robot made by Toyota blows its own horn.
Image from Wikimedia.

 

I happened to type “evolution revised” into my Safari browser, and A.I. kicked in. I try to turn off A.I. as much as I can, but this slipped past me. Here’s what it said:

AI Overview

Evolutionary theory is currently being updated from the traditional gene-centric M...

The late Craig Venter. Photograph by Michael Janich. CC BY-SA 3.0.

We received an e-mail just now from Joel Eissenberg, Emeritus Professor of Biochemistry & Molecular Biology, Saint Louis University School of Medicine, saying,

As you may have seen,

Chrysemys picta – painted turtle, Sawhill Ponds, Boulder, Colorado, April, 2026.

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As I was preparing this post, I noticed that I had earlier posted two other pictures of painted turtles. In 2015, I displayed a handful su...

A rural scene in upstate New York taken with a pinhole camera. The photograph was exposed in about 1972 using a Praktiflex FX with a set of extension tubes and Kodak Tri-X film. The depth of field is virtually infinite, which is to say equally poor at all object distances.

Today is World Pinh...