prehistory

This is a great cartoon by Randall Munroe that makes a very important point very effectively. Spread it around, love it, learn from it. Here is an excellent video walkthrough of the cartoon, discussing its value as a communication tool. But do ignore the details of the prehistory because the cartoonist has fallen into the same trap so many others have, well meaning in intention but simply a) not an expert on key things and b) unaware of the real consequences of getting certain things wrong. When we represent prehistory, we represent humanity both past and present. It is not difficult to do…
A ring-tailed lemur (Lemur catta), photographed at the Bronx Zoo. Who doesn't love lemurs? The strepsirrhine primates, or wet-nosed cousins of ours, are favorite documentary subjects and extremely popular zoo attractions. And, in one of those bits of zoological trivia that everyone knows, lemurs only live on the island of Madagascar off Africa's southeastern coast. The question is how they got there. Documenting the paths of animals during geological history is not an easy task. In the days before scientists understood plate tectonics, land bridges, now sunk beneath the ocean, were often used…
 A nice short piece on "The Prehistory of Stress" by Matt Ford at Ars Technica (newly designed site worth checking out). I have heard people say, on multiple occasions, that they think stress is a modern, Western phenomenon. While the psychological phenomenon known as stress has only had a formal name for just over 80 years, knowing when it was first suffered by our ancestors is a daunting task. Was life really better in the past? Is stress an entirely modern phenomenon? Using modern forensic technology and a decidedly modern understanding of biochemistry, researchers from The University of…