-
What’s this about?
A collection of notes, images, discoveries, amazements, and exclamations about all things science. Read more here.
Monthly Archives: August 2008
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
Common Whitetail
A beautiful specimen of a female Common Whitetail dragonfly (Plathemis lydia), taken yesterday at Sandy Point State Park: More detailed, original image here. The females can be distinguished by having three black patches on their wings, while the males only … Continue reading
Phylogenetic Supertrees
Phylogenetic trees are tree-like diagrams showing the relationships among a group of creatures, often with their most recent common ancestor serving as the base of the trunk (rooted versus unrooted). They illustrate how groups of organisms originated, divided, and endured … Continue reading