a couple of interesting blog pieces

Pondering Pikaia on how the globin genes of Penguins have evolved to help them dive.

and Jonathan Eisen at tree of life on Nancy Moran's work on the genomes of symbionts (just out in PNAS). I saw Nancy Moran give a talk on her work (a year or two ago) and I have to agree with Eisen that she does really great and pretty work. Her talk has definitely stuck with me for a long time.