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9 December 2022
Pillbug tracks in ash from Mt. St. Helens
Reader Nancy Weidman (who supplied the Wind River boudinaged basaltic dike images from earlier in the week) sent me this interesting note: Your ichnoanalogue post reminds me of the insect or pillbug tracks I found in Mt. St. Helens ash deposited in Missoula, Montana. At least some of the tracks, if I recall correctly, ended in dead bugs, presumably dead after its breathing tubes clogged with ash. No fossils from …
25 January 2017
Y-shaped joints on a basalt flow, Lake Mývatn, Iceland
A basalt flow in Iceland shows both enticing pahoehoe and fractures with a Y-shaped intersection pattern. Comparisons to bread loaves and east Africa suggest a reason why.
28 November 2016
Scenes from the Wildlife Camera
Here’s a look at some of the wild critters that have been visiting my yard this year: [youtube=”https://www.youtube.com/watch?v=hh8muzLOE54″] The video’s organized in alphabetical order, so it starts with bears, and ends with a walking stick insect. See how many you can identify! Plus, here’s a compilation of 125 still photos of black bears from June of 2015: [youtube=”https://www.youtube.com/watch?v=JBkFUQ_igmU”]
23 December 2013
Monday macrobugs: mating stick insects
Back in the fall, we saw a lot of sexy scenes among the stick insects on our land. Everywhere, it seemed, the smaller males were searching out larger females, and put gametes together to make the little zygotes that would grow into the next generation of these extraordinarily well-camouflaged insects… Here’s a pair on the side of the house: And, same pair, with a flash illuminating their nuptials… Note the …
16 December 2013
Monday microbugs: Looking through my new AmScope
Recently, I bought a microscope for home use. This has been a longtime goal for me. I’ve dreamed of having my own microscope the way some guys fantasize about a Porsche 911. It’s an AmScope model, and it has an attachment for a small digital camera that comes with the scope. While the scope is lots of fun, though a little small, I’ll admit that I’m not too impressed with …
9 December 2013
Monday macrobug: mantis on the window screen
After yesterday’s 4+ inches of snow, I doubt we’ll be seeing a praying mantis this big again for the better part of ten months…
25 November 2013
Monday macrobug: Baxter spies a wheel bug
We were out on the deck the other day when Baxter spotted a wheel bug. He can say “bug” now, and this was such an occasion. The kid’s a chip off the ol’ block! He has a good eye for the bugs.
11 November 2013
Monday macrobug: milkweed bugs on milkweed pods
Monarch butterflies aren’t the only insects that like visiting milkweed…
4 November 2013
Monday macrobug: backstroking grub
The Monday macrobug is a juvenile beetle with an odd means of locomotion.
28 October 2013
Monday macrobug: baby stinkbugs
Here’s a recently hatched clutch of stinkbug eggs seen in September on a houseplant that we let live out on the porch for several months: The cute little bugs there are juvenile brown marmorated stinkbugs.
Callan Bentley is Associate Professor of Geology at Piedmont Virginia Community College in Charlottesville, Virginia. He is a Fellow of the Geological Society of America. For his work on this blog, the National Association of Geoscience Teachers recognized him with the James Shea Award. He has also won the Outstanding Faculty Award from the State Council on Higher Education in Virginia, and the Biggs Award for Excellence in Geoscience Teaching from the Geoscience Education Division of the Geological Society of America. In previous years, Callan served as a contributing editor at EARTH magazine, President of the Geological Society of Washington and President the Geo2YC division of NAGT.