desert

"Don't go around saying the world owes you a living. The world owes you nothing. It was here first." -Mark Twain So, you've been around a while, seen all sorts of things, and learned an awful lot about the world, solar system and Universe that we live in. But how well do you know it, really? Image credit: NASA / Lunar and Planetary Laboratory. To scale and in order, these are the eight planets you know so well. There are the four rocky worlds of our inner solar system: Mercury, Venus, Earth, and Mars, and the four gas giants that dominate the outer solar system: Jupiter, Saturn, Uranus, and…
A golden-mantled ground squirrel (Spermophilus lateralis), photographed in Bryce Canyon National Park, Utah.
It's 6ºF (-14ºC) here in central Illinois.  Can't do much about that, but here are some shots of warmer times and warmer places. Monument Valley, 2006 Southern California, 2004 Tucson, Arizona, 2006 Joshua Tree National Park, 2005 Cholla at Joshua Tree National Park, 2005 near Nogales, Mexico, 2006
Eusattus dilatatus - dune darkling beetle (Tenebrionidae) California, USA Sand dunes are an unusual habitat, and the creatures found on them are equally odd. One of the more charismatic dune endemics is Eusattus dilatatus, a large darkling beetle found in southern California. This scavenging insect has long legs for digging and a waxy cuticle to prevent dessication. Eusattus is not the easiest photographic subject. It seemed uncomfortable out in the open and would burrow as soon as I placed it on the sand. The series below spans 30 seconds. **update** Tenebrionid expert Kojun Kanda…
In our front yard we've got a busy nest of Pogonomyrmex rugosus seed harvesting ants. Warming weather brought them out for the first time last week, and every now and again I go out to see what they're up to. Lots of digging, it seems. Pogonomyrmex is greek for "Bearded Ant", named 150 years ago by Austrian myrmecologist Gustav Mayr for the thick brush of hairs on the underside of the head. Entomologists affectionately refer to these ubiquitous desert insects as "Pogos". What does the beard do? It's a construction tool, and one that is especially helpful in dry, sandy climates. As anyone…
"I went out collecting with Albert Way of Trinity, who in after years became a well-known archaeologist; also with H. Thompson, afterwards a leading agriculturalist, chairman of a great railway, and a Member of Parliament. It seems therefore that a taste for collecting beetles is some indication of future success in life." - Charles Darwin Cactus Longhorn Beetle, Moneilema sp. Tucson, Arizona details: Canon 100mm macro lens on a Canon 20D f/20, 1/2 sec, ISO 400 camera on tripod, natural light levels adjusted in…
  The Saguaro might, one could fancy, be a tree designed by someone who had never seen a tree. -Donald Culross Peattie, 1950