Daily Archives: August 6, 2008

Hairs and spikes

Here are two beautiful caterpillars I photographed in my backyard recently. I believe they were attracted to the large amount of Virginia Creeper growing on one side of the yard. Eight-spotted Forester Caterpillar (Alypia octomaculata) Common Buckeye Caterpillar (Junonia coenia)

Posted in Nature photos | Tagged | Leave a comment

A Glimpse into the RNA World

A recent ScienceDaily article summarized a July 18 paper in the journal Science that described the mechanism by which a type of RNA is able to regulate gene expression in some bacteria. It was already known that this RNA, cyclic … Continue reading

Posted in Biology | Tagged , | Leave a comment