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A collection of notes, images, discoveries, amazements, and exclamations about all things science. Read more here.
Daily Archives: August 3, 2008
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